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crowdsource-backend.log.2021-05-10.log

crowdsource-backend.log.2021-05-10.log 376 KB
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  1. 09:54:48.004 [main] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    2. 

  2. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:zookeeper.version=3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60, built on 04/03/2017 16:19 GMT 
    3. 

  3. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:host.name=172.16.100.98 
    4. 

  4. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.version=1.8.0_181 
    5. 

  5. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.vendor=Oracle Corporation 
    6. 

  6. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre 
    7. 

  7. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.class.path=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/tools.jar:/Users/guochao/Desktop/project/crowdsource-backend/target/classes:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-web/2.1.4.RELEASE/spring-boot-starter-web-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter/2.1.4.RELEASE/spring-boot-starter-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot/2.1.4.RELEASE/spring-boot-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.1.4.RELEASE/spring-boot-autoconfigure-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-logging/2.1.4.RELEASE/spring-boot-starter-logging-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar:/Users/guochao/.m2/repository/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar:/Users/guochao/.m2/repository/org/apache/logging/log4j/log4j-to-slf4j/2.11.2/log4j-to-slf4j-2.11.2.jar:/Users/guochao/.m2/repository/org/apache/logging/log4j/log4j-api/2.11.2/log4j-api-2.11.2.jar:/Users/guochao/.m2/repository/org/slf4j/jul-to-slf4j/1.7.26/jul-to-slf4j-1.7.26.jar:/Users/guochao/.m2/repository/javax/annotation/javax.annotation-api/1.3.2/javax.annotation-api-1.3.2.jar:/Users/guochao/.m2/repository/org/yaml/snakeyaml/1.23/snakeyaml-1.23.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-json/2.1.4.RELEASE/spring-boot-starter-json-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.9.8/jackson-databind-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.9.0/jackson-annotations-2.9.0.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.9.8/jackson-core-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.9.8/jackson-datatype-jdk8-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.9.8/jackson-datatype-jsr310-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.9.8/jackson-module-parameter-names-2.9.8.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/2.1.4.RELEASE/spring-boot-starter-tomcat-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar:/Users/guochao/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/9.0.17/tomcat-embed-el-9.0.17.jar:/Users/guochao/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/9.0.17/tomcat-embed-websocket-9.0.17.jar:/Users/guochao/.m2/repository/org/hibernate/validator/hibernate-validator/6.0.16.Final/hibernate-validator-6.0.16.Final.jar:/Users/guochao/.m2/repository/javax/validation/validation-api/2.0.1.Final/validation-api-2.0.1.Final.jar:/Users/guochao/.m2/repository/org/jboss/logging/jboss-logging/3.3.2.Final/jboss-logging-3.3.2.Final.jar:/Users/guochao/.m2/repository/com/fasterxml/classmate/1.4.0/classmate-1.4.0.jar:/Users/guochao/.m2/repository/org/springframework/spring-web/5.1.6.RELEASE/spring-web-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-beans/5.1.6.RELEASE/spring-beans-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-webmvc/5.1.6.RELEASE/spring-webmvc-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-context/5.1.6.RELEASE/spring-context-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-expression/5.1.6.RELEASE/spring-expression-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/session/spring-session-core/2.1.5.RELEASE/spring-session-core-2.1.5.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-jcl/5.1.6.RELEASE/spring-jcl-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/slf4j/slf4j-api/1.7.26/slf4j-api-1.7.26.jar:/Users/guochao/.m2/repository/org/springframework/spring-core/5.1.6.RELEASE/spring-core-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/com/google/code/gson/gson/2.8.2/gson-2.8.2.jar:/Users/guochao/.m2/repository/org/json/json/20160810/json-20160810.jar:/Users/guochao/.m2/repository/org/apache/poi/poi/3.17/poi-3.17.jar:/Users/guochao/.m2/repository/commons-codec/commons-codec/1.11/commons-codec-1.11.jar:/Users/guochao/.m2/repository/org/apache/commons/commons-collections4/4.1/commons-collections4-4.1.jar:/Users/guochao/.m2/repository/org/apache/poi/poi-ooxml/3.17/poi-ooxml-3.17.jar:/Users/guochao/.m2/repository/org/apache/poi/poi-ooxml-schemas/3.17/poi-ooxml-schemas-3.17.jar:/Users/guochao/.m2/repository/org/apache/xmlbeans/xmlbeans/2.6.0/xmlbeans-2.6.0.jar:/Users/guochao/.m2/repository/com/github/virtuald/curvesapi/1.04/curvesapi-1.04.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-data-mongodb/2.1.4.RELEASE/spring-boot-starter-data-mongodb-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/mongodb/mongodb-driver/3.8.2/mongodb-driver-3.8.2.jar:/Users/guochao/.m2/repository/org/mongodb/bson/3.8.2/bson-3.8.2.jar:/Users/guochao/.m2/repository/org/mongodb/mongodb-driver-core/3.8.2/mongodb-driver-core-3.8.2.jar:/Users/guochao/.m2/repository/org/springframework/data/spring-data-mongodb/2.1.6.RELEASE/spring-data-mongodb-2.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-tx/5.1.6.RELEASE/spring-tx-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/data/spring-data-commons/2.1.6.RELEASE/spring-data-commons-2.1.6.RELEASE.jar:/Users/guochao/.m2/repository/commons-fileupload/commons-fileupload/1.2.1/commons-fileupload-1.2.1.jar:/Users/guochao/.m2/repository/org/ansj/ansj_seg/5.1.1/ansj_seg-5.1.1.jar:/Users/guochao/.m2/repository/org/nlpcn/nlp-lang/1.7.2/nlp-lang-1.7.2.jar:/Users/guochao/.m2/repository/com/hankcs/hanlp/portable-1.7.0/hanlp-portable-1.7.0.jar:/Users/guochao/.m2/repository/org/projectlombok/lombok/1.18.8/lombok-1.18.8.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-zookeeper-config/2.1.2.RELEASE/spring-cloud-starter-zookeeper-config-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-zookeeper/2.1.2.RELEASE/spring-cloud-starter-zookeeper-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-commons/2.1.2.RELEASE/spring-cloud-commons-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-zookeeper-core/2.1.2.RELEASE/spring-cloud-zookeeper-core-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-zookeeper-config/2.1.2.RELEASE/spring-cloud-zookeeper-config-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/apache/curator/curator-recipes/4.0.1/curator-recipes-4.0.1.jar:/Users/guochao/.m2/repository/org/apache/curator/curator-framework/4.0.1/curator-framework-4.0.1.jar:/Users/guochao/.m2/repository/org/apache/curator/curator-client/4.0.1/curator-client-4.0.1.jar:/Users/guochao/.m2/repository/org/apache/zookeeper/zookeeper/3.5.3-beta/zookeeper-3.5.3-beta.jar:/Users/guochao/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-context/2.1.2.RELEASE/spring-cloud-context-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/security/spring-security-crypto/5.1.5.RELEASE/spring-security-crypto-5.1.5.RELEASE.jar:/Users/guochao/.m2/repository/com/alibaba/cloud/spring-cloud-starter-alibaba-nacos-discovery/2.1.0.RELEASE/spring-cloud-starter-alibaba-nacos-discovery-2.1.0.RELEASE.jar:/Users/guochao/.m2/repository/com/alibaba/cloud/spring-cloud-alibaba-nacos-discovery/2.1.0.RELEASE/spring-cloud-alibaba-nacos-discovery-2.1.0.RELEASE.jar:/Users/guochao/.m2/repository/com/alibaba/nacos/nacos-client/1.1.1/nacos-client-1.1.1.jar:/Users/guochao/.m2/repository/com/alibaba/nacos/nacos-common/1.1.1/nacos-common-1.1.1.jar:/Users/guochao/.m2/repository/commons-io/commons-io/2.2/commons-io-2.2.jar:/Users/guochao/.m2/repository/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar:/Users/guochao/.m2/repository/com/alibaba/nacos/nacos-api/1.1.1/nacos-api-1.1.1.jar:/Users/guochao/.m2/repository/io/prometheus/simpleclient/0.5.0/simpleclient-0.5.0.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-netflix-ribbon/2.1.2.RELEASE/spring-cloud-starter-netflix-ribbon-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter/2.1.2.RELEASE/spring-cloud-starter-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/security/spring-security-rsa/1.0.7.RELEASE/spring-security-rsa-1.0.7.RELEASE.jar:/Users/guochao/.m2/repository/org/bouncycastle/bcpkix-jdk15on/1.60/bcpkix-jdk15on-1.60.jar:/Users/guochao/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.60/bcprov-jdk15on-1.60.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-netflix-ribbon/2.1.2.RELEASE/spring-cloud-netflix-ribbon-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-netflix-archaius/2.1.2.RELEASE/spring-cloud-netflix-archaius-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-netflix-archaius/2.1.2.RELEASE/spring-cloud-starter-netflix-archaius-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/com/netflix/archaius/archaius-core/0.7.6/archaius-core-0.7.6.jar:/Users/guochao/.m2/repository/commons-configuration/commons-configuration/1.8/commons-configuration-1.8.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon/2.3.0/ribbon-2.3.0.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-transport/2.3.0/ribbon-transport-2.3.0.jar:/Users/guochao/.m2/repository/io/reactivex/rxnetty-contexts/0.4.9/rxnetty-contexts-0.4.9.jar:/Users/guochao/.m2/repository/io/reactivex/rxnetty-servo/0.4.9/rxnetty-servo-0.4.9.jar:/Users/guochao/.m2/repository/com/netflix/hystrix/hystrix-core/1.5.18/hystrix-core-1.5.18.jar:/Users/guochao/.m2/repository/org/hdrhistogram/HdrHistogram/2.1.9/HdrHistogram-2.1.9.jar:/Users/guochao/.m2/repository/javax/inject/javax.inject/1/javax.inject-1.jar:/Users/guochao/.m2/repository/io/reactivex/rxnetty/0.4.9/rxnetty-0.4.9.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-core/2.3.0/ribbon-core-2.3.0.jar:/Users/guochao/.m2/repository/commons-lang/commons-lang/2.6/commons-lang-2.6.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-httpclient/2.3.0/ribbon-httpclient-2.3.0.jar:/Users/guochao/.m2/repository/commons-collections/commons-collections/3.2.2/commons-collections-3.2.2.jar:/Users/guochao/.m2/repository/com/sun/jersey/jersey-client/1.19.1/jersey-client-1.19.1.jar:/Users/guochao/.m2/repository/com/sun/jersey/jersey-core/1.19.1/jersey-core-1.19.1.jar:/Users/guochao/.m2/repository/javax/ws/rs/jsr311-api/1.1.1/jsr311-api-1.1.1.jar:/Users/guochao/.m2/repository/com/sun/jersey/contribs/jersey-apache-client4/1.19.1/jersey-apache-client4-1.19.1.jar:/Users/guochao/.m2/repository/com/netflix/servo/servo-core/0.12.21/servo-core-0.12.21.jar:/Users/guochao/.m2/repository/com/netflix/netflix-commons/netflix-commons-util/0.3.0/netflix-commons-util-0.3.0.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-loadbalancer/2.3.0/ribbon-loadbalancer-2.3.0.jar:/Users/guochao/.m2/repository/com/netflix/netflix-commons/netflix-statistics/0.1.1/netflix-statistics-0.1.1.jar:/Users/guochao/.m2/repository/io/reactivex/rxjava/1.3.8/rxjava-1.3.8.jar:/Users/guochao/.m2/repository/com/aliyun/oss/aliyun-sdk-oss/3.8.0/aliyun-sdk-oss-3.8.0.jar:/Users/guochao/.m2/repository/org/apache/httpcomponents/httpclient/4.5.8/httpclient-4.5.8.jar:/Users/guochao/.m2/repository/org/apache/httpcomponents/httpcore/4.4.11/httpcore-4.4.11.jar:/Users/guochao/.m2/repository/org/jdom/jdom/1.1/jdom-1.1.jar:/Users/guochao/.m2/repository/org/codehaus/jettison/jettison/1.1/jettison-1.1.jar:/Users/guochao/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-core/3.4.0/aliyun-java-sdk-core-3.4.0.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-ram/3.0.0/aliyun-java-sdk-ram-3.0.0.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-sts/3.0.0/aliyun-java-sdk-sts-3.0.0.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-ecs/4.2.0/aliyun-java-sdk-ecs-4.2.0.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-aop/2.1.4.RELEASE/spring-boot-starter-aop-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-aop/5.1.6.RELEASE/spring-aop-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/aspectj/aspectjweaver/1.9.2/aspectjweaver-1.9.2.jar:/Users/guochao/.m2/repository/com/google/guava/guava/25.0-jre/guava-25.0-jre.jar:/Users/guochao/.m2/repository/com/google/code/findbugs/jsr305/1.3.9/jsr305-1.3.9.jar:/Users/guochao/.m2/repository/org/checkerframework/checker-compat-qual/2.0.0/checker-compat-qual-2.0.0.jar:/Users/guochao/.m2/repository/com/google/errorprone/error_prone_annotations/2.1.3/error_prone_annotations-2.1.3.jar:/Users/guochao/.m2/repository/com/google/j2objc/j2objc-annotations/1.1/j2objc-annotations-1.1.jar:/Users/guochao/.m2/repository/org/codehaus/mojo/animal-sniffer-annotations/1.14/animal-sniffer-annotations-1.14.jar:/Users/guochao/.m2/repository/io/github/yedaxia/japidocs/1.4.4/japidocs-1.4.4.jar:/Users/guochao/.m2/repository/com/alibaba/fastjson/1.2.70/fastjson-1.2.70.jar:/Users/guochao/.m2/repository/com/github/javaparser/javaparser-core/3.6.16/javaparser-core-3.6.16.jar:/Users/guochao/.m2/repository/org/freemarker/freemarker/2.3.28/freemarker-2.3.28.jar:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar 
    8. 

  8. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.library.path=/Users/guochao/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:. 
    9. 

  9. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.io.tmpdir=/var/folders/z7/lr15ch9n11jbc7g7ktktl8nw0000gn/T/ 
    10. 

  10. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.compiler=<NA> 
    11. 

  11. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.name=Mac OS X 
    12. 

  12. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.arch=x86_64 
    13. 

  13. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.version=10.14.6 
    14. 

  14. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.name=guochao 
    15. 

  15. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.home=/Users/guochao 
    16. 

  16. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.dir=/Users/guochao/Desktop/project/crowdsource-backend 
    17. 

  17. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.free=175MB 
    18. 

  18. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.max=3641MB 
    19. 

  19. 09:54:48.137 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.total=350MB 
    20. 

  20. 09:54:48.149 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    21. 

  21. 09:54:48.151 [main] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@52a70627 
    22. 

  22. 09:54:48.158 [main] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    23. 

  23. 09:54:48.215 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    24. 

  24. 09:54:48.221 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    25. 

  25. 09:54:48.394 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55349, server: 101.37.175.111/101.37.175.111:2181 
    26. 

  26. 09:54:48.554 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd758, negotiated timeout = 40000 
    27. 

  27. 09:54:48.561 [main-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    28. 

  28. 09:54:54.497 [main] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    29. 

  29. 09:54:54.522 [main] INFO  edu.nju.BugApplication - The following profiles are active: dev 
    30. 

  30. 09:54:55.165 [main] INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Bootstrapping Spring Data repositories in DEFAULT mode. 
    31. 

  31. 09:54:55.188 [main] INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Finished Spring Data repository scanning in 20ms. Found 0 repository interfaces. 
    32. 

  32. 09:54:55.317 [main] INFO  o.s.c.context.scope.GenericScope - BeanFactory id=b2306abe-4109-3c0b-bf9b-f4447f91967a 
    33. 

  33. 09:54:55.460 [main] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    34. 

  34. 09:54:55.686 [main] INFO  o.s.b.w.e.tomcat.TomcatWebServer - Tomcat initialized with port(s): 8090 (http) 
    35. 

  35. 09:54:55.707 [main] INFO  o.a.catalina.core.StandardService - Starting service [Tomcat] 
    36. 

  36. 09:54:55.708 [main] INFO  o.a.catalina.core.StandardEngine - Starting Servlet engine: [Apache Tomcat/9.0.17] 
    37. 

  37. 09:54:55.801 [main] INFO  o.a.c.c.C.[.[localhost].[/Bug/api] - Initializing Spring embedded WebApplicationContext 
    38. 

  38. 09:54:55.801 [main] INFO  o.s.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 1268 ms 
    39. 

  39. 09:54:56.014 [main] INFO  org.mongodb.driver.cluster - Cluster created with settings {hosts=[localhost:27017], mode=SINGLE, requiredClusterType=UNKNOWN, serverSelectionTimeout='30000 ms', maxWaitQueueSize=500} 
    40. 

  40. 09:54:56.043 [cluster-ClusterId{value='60989270ac945de4d6b2aed2', description='null'}-localhost:27017] INFO  org.mongodb.driver.connection - Opened connection [connectionId{localValue:1, serverValue:36}] to localhost:27017 
    41. 

  41. 09:54:56.047 [cluster-ClusterId{value='60989270ac945de4d6b2aed2', description='null'}-localhost:27017] INFO  org.mongodb.driver.cluster - Monitor thread successfully connected to server with description ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[4, 0, 11]}, minWireVersion=0, maxWireVersion=7, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=2364960} 
    42. 

  42. 09:54:56.326 [main] INFO  org.mongodb.driver.connection - Opened connection [connectionId{localValue:2, serverValue:38}] to localhost:27017 
    43. 

  43. 09:54:56.563 [main] WARN  c.n.c.s.URLConfigurationSource - No URLs will be polled as dynamic configuration sources. 
    44. 

  44. 09:54:56.563 [main] INFO  c.n.c.s.URLConfigurationSource - To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath. 
    45. 

  45. 09:54:56.567 [main] WARN  c.n.c.s.URLConfigurationSource - No URLs will be polled as dynamic configuration sources. 
    46. 

  46. 09:54:56.567 [main] INFO  c.n.c.s.URLConfigurationSource - To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath. 
    47. 

  47. 09:54:56.719 [main] INFO  o.s.s.c.ThreadPoolTaskExecutor - Initializing ExecutorService 'applicationTaskExecutor' 
    48. 

  48. 09:54:56.882 [main] INFO  o.s.s.c.ThreadPoolTaskScheduler - Initializing ExecutorService 
    49. 

  49. 09:54:57.137 [main] INFO  o.s.b.w.e.tomcat.TomcatWebServer - Tomcat started on port(s): 8090 (http) with context path '/Bug/api' 
    50. 

  50. 09:54:57.325 [main] ERROR c.a.c.n.r.NacosServiceRegistry - nacos registry, mooctest-crowdsource-backend register failed...NacosRegistration{nacosDiscoveryProperties=NacosDiscoveryProperties{serverAddr='127.0.0.1:8848', endpoint='', namespace='', watchDelay=30000, logName='', service='mooctest-crowdsource-backend', weight=1.0, clusterName='DEFAULT', namingLoadCacheAtStart='false', metadata={preserved.register.source=SPRING_CLOUD}, registerEnabled=true, ip='172.16.100.98', networkInterface='', port=8090, secure=false, accessKey='', secretKey=''}}, 
    51. 

  51. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    52. 

  52. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    53. 

  53. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    54. 

  54. 	at com.alibaba.nacos.client.naming.net.NamingProxy.registerService(NamingProxy.java:188)
    55. 

  55. 	at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:205)
    56. 

  56. 	at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:184)
    57. 

  57. 	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.register(NacosServiceRegistry.java:61)
    58. 

  58. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.register(AbstractAutoServiceRegistration.java:239)
    59. 

  59. 	at com.alibaba.cloud.nacos.registry.NacosAutoServiceRegistration.register(NacosAutoServiceRegistration.java:74)
    60. 

  60. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.start(AbstractAutoServiceRegistration.java:138)
    61. 

  61. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.bind(AbstractAutoServiceRegistration.java:101)
    62. 

  62. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:88)
    63. 

  63. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:47)
    64. 

  64. 	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
    65. 

  65. 	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
    66. 

  66. 	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
    67. 

  67. 	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:402)
    68. 

  68. 	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:359)
    69. 

  69. 	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:166)
    70. 

  70. 	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552)
    71. 

  71. 	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
    72. 

  72. 	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
    73. 

  73. 	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
    74. 

  74. 	at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
    75. 

  75. 	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
    76. 

  76. 	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
    77. 

  77. 	at edu.nju.BugApplication.main(BugApplication.java:31)
    78. 

  78. 09:54:57.327 [main] INFO  edu.nju.BugApplication - Started BugApplication in 9.879 seconds (JVM running for 15.024) 
    79. 

  79. 09:54:57.622 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    80. 

  80. 09:54:57.642 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    81. 

  81. 09:54:57.642 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@38758514 
    82. 

  82. 09:54:57.643 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    83. 

  83. 09:54:57.643 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    84. 

  84. 09:54:57.643 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    85. 

  85. 09:54:57.923 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55426, server: 101.37.175.111/101.37.175.111:2181 
    86. 

  86. 09:54:58.214 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd75a, negotiated timeout = 40000 
    87. 

  87. 09:54:58.214 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    88. 

  88. 09:55:03.524 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    89. 

  89. 09:55:03.541 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    90. 

  90. 09:55:03.548 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 5.98 seconds (JVM running for 21.245) 
    91. 

  91. 09:55:03.550 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    92. 

  92. 09:55:03.592 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd75a closed 
    93. 

  93. 09:55:03.592 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd75a 
    94. 

  94. 09:55:03.611 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    95. 

  95. 09:55:03.650 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    96. 

  96. 09:55:03.665 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    97. 

  97. 09:55:03.665 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@2c6a3e90 
    98. 

  98. 09:55:03.665 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    99. 

  99. 09:55:03.665 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    100. 

  100. 09:55:03.666 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    101. 

  101. 09:55:03.694 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55464, server: 101.37.175.111/101.37.175.111:2181 
    102. 

  102. 09:55:03.729 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd75b, negotiated timeout = 40000 
    103. 

  103. 09:55:03.730 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    104. 

  104. 09:55:04.842 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    105. 

  105. 09:55:04.854 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    106. 

  106. 09:55:04.860 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.248 seconds (JVM running for 22.556) 
    107. 

  107. 09:55:04.861 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    108. 

  108. 09:55:04.887 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd75b closed 
    109. 

  109. 09:55:04.887 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd75b 
    110. 

  110. 09:55:04.902 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    111. 

  111. 09:55:04.936 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    112. 

  112. 09:55:04.949 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    113. 

  113. 09:55:04.950 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@4486e042 
    114. 

  114. 09:55:04.950 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    115. 

  115. 09:55:04.950 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    116. 

  116. 09:55:04.950 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    117. 

  117. 09:55:04.971 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55476, server: 101.37.175.111/101.37.175.111:2181 
    118. 

  118. 09:55:05.003 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd75d, negotiated timeout = 40000 
    119. 

  119. 09:55:05.003 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    120. 

  120. 09:55:06.071 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    121. 

  121. 09:55:06.086 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    122. 

  122. 09:55:06.091 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.188 seconds (JVM running for 23.788) 
    123. 

  123. 09:55:06.092 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    124. 

  124. 09:55:06.124 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd75d closed 
    125. 

  125. 09:55:06.124 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd75d 
    126. 

  126. 09:55:06.138 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    127. 

  127. 09:55:06.171 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    128. 

  128. 09:55:06.184 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    129. 

  129. 09:55:06.184 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@5f8bd47e 
    130. 

  130. 09:55:06.184 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    131. 

  131. 09:55:06.185 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    132. 

  132. 09:55:06.185 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    133. 

  133. 09:55:06.209 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55489, server: 101.37.175.111/101.37.175.111:2181 
    134. 

  134. 09:55:06.234 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd75e, negotiated timeout = 40000 
    135. 

  135. 09:55:06.235 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    136. 

  136. 09:55:07.317 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    137. 

  137. 09:55:07.329 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    138. 

  138. 09:55:07.334 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.194 seconds (JVM running for 25.03) 
    139. 

  139. 09:55:07.334 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    140. 

  140. 09:55:07.336 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    141. 

  141. 09:55:07.337 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    142. 

  142. java.net.ConnectException: Connection refused (Connection refused)
    143. 

  143. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    144. 

  144. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    145. 

  145. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    146. 

  146. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    147. 

  147. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    148. 

  148. 	at java.net.Socket.connect(Socket.java:589)
    149. 

  149. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    150. 

  150. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    151. 

  151. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    152. 

  152. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    153. 

  153. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    154. 

  154. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    155. 

  155. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    156. 

  156. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    157. 

  157. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    158. 

  158. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    159. 

  159. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    160. 

  160. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    161. 

  161. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    162. 

  162. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    163. 

  163. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    164. 

  164. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    165. 

  165. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    166. 

  166. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    167. 

  167. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    168. 

  168. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    169. 

  169. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    170. 

  170. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    171. 

  171. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    172. 

  172. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    173. 

  173. 	at java.lang.Thread.run(Thread.java:748)
    174. 

  174. 09:55:07.337 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    175. 

  175. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    176. 

  176. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    177. 

  177. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    178. 

  178. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    179. 

  179. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    180. 

  180. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    181. 

  181. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    182. 

  182. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    183. 

  183. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    184. 

  184. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    185. 

  185. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    186. 

  186. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    187. 

  187. 	at java.lang.Thread.run(Thread.java:748)
    188. 

  188. 09:55:07.337 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    189. 

  189. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    190. 

  190. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    191. 

  191. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    192. 

  192. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    193. 

  193. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    194. 

  194. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    195. 

  195. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    196. 

  196. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    197. 

  197. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    198. 

  198. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    199. 

  199. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    200. 

  200. 	at java.lang.Thread.run(Thread.java:748)
    201. 

  201. 09:55:07.364 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd75e closed 
    202. 

  202. 09:55:07.364 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd75e 
    203. 

  203. 09:55:07.379 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    204. 

  204. 09:55:07.405 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    205. 

  205. 09:55:07.415 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    206. 

  206. 09:55:07.415 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@13ef0d3b 
    207. 

  207. 09:55:07.415 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    208. 

  208. 09:55:07.415 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    209. 

  209. 09:55:07.415 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    210. 

  210. 09:55:07.440 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55496, server: 101.37.175.111/101.37.175.111:2181 
    211. 

  211. 09:55:07.477 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd760, negotiated timeout = 40000 
    212. 

  212. 09:55:07.477 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    213. 

  213. 09:55:08.538 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    214. 

  214. 09:55:08.549 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    215. 

  215. 09:55:08.555 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.175 seconds (JVM running for 26.252) 
    216. 

  216. 09:55:08.556 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    217. 

  217. 09:55:08.582 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd760 closed 
    218. 

  218. 09:55:08.582 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd760 
    219. 

  219. 09:55:08.598 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    220. 

  220. 09:55:08.631 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    221. 

  221. 09:55:08.643 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    222. 

  222. 09:55:08.643 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@42fa5b6e 
    223. 

  223. 09:55:08.643 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    224. 

  224. 09:55:08.644 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    225. 

  225. 09:55:08.644 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    226. 

  226. 09:55:08.684 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55505, server: 101.37.175.111/101.37.175.111:2181 
    227. 

  227. 09:55:08.715 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd762, negotiated timeout = 40000 
    228. 

  228. 09:55:08.715 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    229. 

  229. 09:55:10.004 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    230. 

  230. 09:55:10.013 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    231. 

  231. 09:55:10.019 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.42 seconds (JVM running for 27.715) 
    232. 

  232. 09:55:10.019 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    233. 

  233. 09:55:10.048 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd762 closed 
    234. 

  234. 09:55:10.048 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd762 
    235. 

  235. 09:55:10.060 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    236. 

  236. 09:55:10.091 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    237. 

  237. 09:55:10.101 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    238. 

  238. 09:55:10.101 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@26e9abb0 
    239. 

  239. 09:55:10.101 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    240. 

  240. 09:55:10.102 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    241. 

  241. 09:55:10.102 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    242. 

  242. 09:55:10.133 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55520, server: 101.37.175.111/101.37.175.111:2181 
    243. 

  243. 09:55:10.165 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd763, negotiated timeout = 40000 
    244. 

  244. 09:55:10.165 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    245. 

  245. 09:55:11.259 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    246. 

  246. 09:55:11.270 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    247. 

  247. 09:55:11.278 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.217 seconds (JVM running for 28.974) 
    248. 

  248. 09:55:11.278 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    249. 

  249. 09:55:11.306 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd763 closed 
    250. 

  250. 09:55:11.306 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd763 
    251. 

  251. 09:55:11.322 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    252. 

  252. 09:55:11.378 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    253. 

  253. 09:55:11.389 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    254. 

  254. 09:55:11.390 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@37b70f73 
    255. 

  255. 09:55:11.390 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    256. 

  256. 09:55:11.390 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    257. 

  257. 09:55:11.390 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    258. 

  258. 09:55:11.415 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55529, server: 101.37.175.111/101.37.175.111:2181 
    259. 

  259. 09:55:11.446 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd765, negotiated timeout = 40000 
    260. 

  260. 09:55:11.447 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    261. 

  261. 09:55:12.341 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    262. 

  262. 09:55:12.341 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    263. 

  263. java.net.ConnectException: Connection refused (Connection refused)
    264. 

  264. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    265. 

  265. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    266. 

  266. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    267. 

  267. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    268. 

  268. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    269. 

  269. 	at java.net.Socket.connect(Socket.java:589)
    270. 

  270. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    271. 

  271. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    272. 

  272. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    273. 

  273. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    274. 

  274. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    275. 

  275. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    276. 

  276. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    277. 

  277. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    278. 

  278. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    279. 

  279. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    280. 

  280. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    281. 

  281. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    282. 

  282. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    283. 

  283. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    284. 

  284. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    285. 

  285. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    286. 

  286. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    287. 

  287. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    288. 

  288. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    289. 

  289. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    290. 

  290. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    291. 

  291. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    292. 

  292. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    293. 

  293. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    294. 

  294. 	at java.lang.Thread.run(Thread.java:748)
    295. 

  295. 09:55:12.341 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    296. 

  296. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    297. 

  297. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    298. 

  298. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    299. 

  299. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    300. 

  300. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    301. 

  301. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    302. 

  302. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    303. 

  303. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    304. 

  304. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    305. 

  305. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    306. 

  306. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    307. 

  307. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    308. 

  308. 	at java.lang.Thread.run(Thread.java:748)
    309. 

  309. 09:55:12.342 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    310. 

  310. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    311. 

  311. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    312. 

  312. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    313. 

  313. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    314. 

  314. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    315. 

  315. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    316. 

  316. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    317. 

  317. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    318. 

  318. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    319. 

  319. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    320. 

  320. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    321. 

  321. 	at java.lang.Thread.run(Thread.java:748)
    322. 

  322. 09:55:12.701 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    323. 

  323. 09:55:12.711 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    324. 

  324. 09:55:12.717 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.373 seconds (JVM running for 30.413) 
    325. 

  325. 09:55:12.717 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    326. 

  326. 09:55:12.747 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd765 closed 
    327. 

  327. 09:55:12.747 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd765 
    328. 

  328. 09:55:12.762 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    329. 

  329. 09:55:12.795 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    330. 

  330. 09:55:12.807 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    331. 

  331. 09:55:12.807 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@4b447443 
    332. 

  332. 09:55:12.807 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    333. 

  333. 09:55:12.807 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    334. 

  334. 09:55:12.807 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    335. 

  335. 09:55:12.834 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55539, server: 101.37.175.111/101.37.175.111:2181 
    336. 

  336. 09:55:12.865 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd767, negotiated timeout = 40000 
    337. 

  337. 09:55:12.865 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    338. 

  338. 09:55:14.005 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    339. 

  339. 09:55:14.017 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    340. 

  340. 09:55:14.025 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.262 seconds (JVM running for 31.721) 
    341. 

  341. 09:55:14.026 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    342. 

  342. 09:55:14.055 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd767 closed 
    343. 

  343. 09:55:14.055 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd767 
    344. 

  344. 09:55:14.071 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    345. 

  345. 09:55:14.110 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    346. 

  346. 09:55:14.123 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    347. 

  347. 09:55:14.123 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@3a66547d 
    348. 

  348. 09:55:14.123 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    349. 

  349. 09:55:14.123 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    350. 

  350. 09:55:14.123 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    351. 

  351. 09:55:14.149 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55551, server: 101.37.175.111/101.37.175.111:2181 
    352. 

  352. 09:55:14.180 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd768, negotiated timeout = 40000 
    353. 

  353. 09:55:14.181 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    354. 

  354. 09:55:15.285 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    355. 

  355. 09:55:15.296 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    356. 

  356. 09:55:15.303 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.231 seconds (JVM running for 32.999) 
    357. 

  357. 09:55:15.303 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    358. 

  358. 09:55:15.332 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd768 closed 
    359. 

  359. 09:55:15.332 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd768 
    360. 

  360. 09:55:15.348 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    361. 

  361. 09:55:15.388 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    362. 

  362. 09:55:15.402 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    363. 

  363. 09:55:15.402 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@329f23de 
    364. 

  364. 09:55:15.402 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    365. 

  365. 09:55:15.403 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    366. 

  366. 09:55:15.403 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    367. 

  367. 09:55:15.443 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55560, server: 101.37.175.111/101.37.175.111:2181 
    368. 

  368. 09:55:15.471 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd76a, negotiated timeout = 40000 
    369. 

  369. 09:55:15.471 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    370. 

  370. 09:55:16.608 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    371. 

  371. 09:55:16.620 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    372. 

  372. 09:55:16.628 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.279 seconds (JVM running for 34.324) 
    373. 

  373. 09:55:16.629 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    374. 

  374. 09:55:16.653 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd76a closed 
    375. 

  375. 09:55:16.653 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd76a 
    376. 

  376. 09:55:16.672 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    377. 

  377. 09:55:16.725 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    378. 

  378. 09:55:16.744 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    379. 

  379. 09:55:16.744 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@182d0cd1 
    380. 

  380. 09:55:16.745 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    381. 

  381. 09:55:16.745 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    382. 

  382. 09:55:16.745 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    383. 

  383. 09:55:16.772 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55570, server: 101.37.175.111/101.37.175.111:2181 
    384. 

  384. 09:55:16.800 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd76b, negotiated timeout = 40000 
    385. 

  385. 09:55:16.800 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    386. 

  386. 09:55:17.347 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    387. 

  387. 09:55:17.347 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    388. 

  388. java.net.ConnectException: Connection refused (Connection refused)
    389. 

  389. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    390. 

  390. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    391. 

  391. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    392. 

  392. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    393. 

  393. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    394. 

  394. 	at java.net.Socket.connect(Socket.java:589)
    395. 

  395. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    396. 

  396. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    397. 

  397. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    398. 

  398. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    399. 

  399. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    400. 

  400. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    401. 

  401. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    402. 

  402. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    403. 

  403. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    404. 

  404. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    405. 

  405. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    406. 

  406. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    407. 

  407. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    408. 

  408. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    409. 

  409. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    410. 

  410. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    411. 

  411. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    412. 

  412. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    413. 

  413. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    414. 

  414. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    415. 

  415. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    416. 

  416. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    417. 

  417. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    418. 

  418. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    419. 

  419. 	at java.lang.Thread.run(Thread.java:748)
    420. 

  420. 09:55:17.348 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    421. 

  421. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    422. 

  422. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    423. 

  423. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    424. 

  424. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    425. 

  425. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    426. 

  426. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    427. 

  427. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    428. 

  428. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    429. 

  429. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    430. 

  430. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    431. 

  431. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    432. 

  432. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    433. 

  433. 	at java.lang.Thread.run(Thread.java:748)
    434. 

  434. 09:55:17.348 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    435. 

  435. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    436. 

  436. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    437. 

  437. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    438. 

  438. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    439. 

  439. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    440. 

  440. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    441. 

  441. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    442. 

  442. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    443. 

  443. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    444. 

  444. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    445. 

  445. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    446. 

  446. 	at java.lang.Thread.run(Thread.java:748)
    447. 

  447. 09:55:18.011 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    448. 

  448. 09:55:18.021 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    449. 

  449. 09:55:18.027 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.354 seconds (JVM running for 35.724) 
    450. 

  450. 09:55:18.028 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    451. 

  451. 09:55:18.058 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd76b 
    452. 

  452. 09:55:18.058 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd76b closed 
    453. 

  453. 09:55:18.070 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    454. 

  454. 09:55:18.103 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    455. 

  455. 09:55:18.114 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    456. 

  456. 09:55:18.114 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@4610f2f5 
    457. 

  457. 09:55:18.114 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    458. 

  458. 09:55:18.114 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    459. 

  459. 09:55:18.114 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    460. 

  460. 09:55:18.148 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55584, server: 101.37.175.111/101.37.175.111:2181 
    461. 

  461. 09:55:18.174 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd76d, negotiated timeout = 40000 
    462. 

  462. 09:55:18.174 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    463. 

  463. 09:55:19.286 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    464. 

  464. 09:55:19.300 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    465. 

  465. 09:55:19.307 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.236 seconds (JVM running for 37.003) 
    466. 

  466. 09:55:19.307 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    467. 

  467. 09:55:19.336 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd76d closed 
    468. 

  468. 09:55:19.336 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd76d 
    469. 

  469. 09:55:19.350 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    470. 

  470. 09:55:19.382 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    471. 

  471. 09:55:19.392 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    472. 

  472. 09:55:19.393 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@4c7048b6 
    473. 

  473. 09:55:19.393 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    474. 

  474. 09:55:19.393 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    475. 

  475. 09:55:19.393 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    476. 

  476. 09:55:19.415 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55593, server: 101.37.175.111/101.37.175.111:2181 
    477. 

  477. 09:55:19.440 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd76f, negotiated timeout = 40000 
    478. 

  478. 09:55:19.440 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    479. 

  479. 09:55:20.224 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    480. 

  480. 09:55:20.233 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    481. 

  481. 09:55:20.238 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 0.888 seconds (JVM running for 37.935) 
    482. 

  482. 09:55:20.239 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    483. 

  483. 09:55:20.260 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd76f closed 
    484. 

  484. 09:55:20.260 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd76f 
    485. 

  485. 09:55:20.271 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    486. 

  486. 09:55:20.300 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    487. 

  487. 09:55:20.310 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    488. 

  488. 09:55:20.310 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@7d6a9ce5 
    489. 

  489. 09:55:20.310 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    490. 

  490. 09:55:20.312 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    491. 

  491. 09:55:20.312 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    492. 

  492. 09:55:20.328 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55602, server: 101.37.175.111/101.37.175.111:2181 
    493. 

  493. 09:55:20.348 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd771, negotiated timeout = 40000 
    494. 

  494. 09:55:20.348 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    495. 

  495. 09:55:21.414 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    496. 

  496. 09:55:21.424 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    497. 

  497. 09:55:21.430 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.158 seconds (JVM running for 39.126) 
    498. 

  498. 09:55:21.430 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    499. 

  499. 09:55:21.462 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd771 closed 
    500. 

  500. 09:55:21.462 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd771 
    501. 

  501. 09:55:21.477 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    502. 

  502. 09:55:21.510 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    503. 

  503. 09:55:21.521 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    504. 

  504. 09:55:21.522 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@2dabc3bf 
    505. 

  505. 09:55:21.522 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    506. 

  506. 09:55:21.522 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    507. 

  507. 09:55:21.522 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    508. 

  508. 09:55:21.548 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55610, server: 101.37.175.111/101.37.175.111:2181 
    509. 

  509. 09:55:21.578 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd772, negotiated timeout = 40000 
    510. 

  510. 09:55:21.578 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    511. 

  511. 09:55:22.353 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    512. 

  512. 09:55:22.353 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    513. 

  513. java.net.ConnectException: Connection refused (Connection refused)
    514. 

  514. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    515. 

  515. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    516. 

  516. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    517. 

  517. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    518. 

  518. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    519. 

  519. 	at java.net.Socket.connect(Socket.java:589)
    520. 

  520. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    521. 

  521. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    522. 

  522. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    523. 

  523. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    524. 

  524. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    525. 

  525. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    526. 

  526. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    527. 

  527. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    528. 

  528. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    529. 

  529. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    530. 

  530. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    531. 

  531. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    532. 

  532. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    533. 

  533. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    534. 

  534. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    535. 

  535. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    536. 

  536. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    537. 

  537. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    538. 

  538. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    539. 

  539. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    540. 

  540. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    541. 

  541. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    542. 

  542. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    543. 

  543. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    544. 

  544. 	at java.lang.Thread.run(Thread.java:748)
    545. 

  545. 09:55:22.353 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    546. 

  546. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    547. 

  547. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    548. 

  548. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    549. 

  549. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    550. 

  550. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    551. 

  551. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    552. 

  552. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    553. 

  553. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    554. 

  554. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    555. 

  555. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    556. 

  556. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    557. 

  557. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    558. 

  558. 	at java.lang.Thread.run(Thread.java:748)
    559. 

  559. 09:55:22.353 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    560. 

  560. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    561. 

  561. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    562. 

  562. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    563. 

  563. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    564. 

  564. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    565. 

  565. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    566. 

  566. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    567. 

  567. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    568. 

  568. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    569. 

  569. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    570. 

  570. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    571. 

  571. 	at java.lang.Thread.run(Thread.java:748)
    572. 

  572. 09:55:22.682 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    573. 

  573. 09:55:22.691 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    574. 

  574. 09:55:22.697 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.219 seconds (JVM running for 40.393) 
    575. 

  575. 09:55:22.698 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    576. 

  576. 09:55:22.733 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd772 
    577. 

  577. 09:55:22.733 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd772 closed 
    578. 

  578. 09:55:22.748 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    579. 

  579. 09:55:22.779 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    580. 

  580. 09:55:22.790 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    581. 

  581. 09:55:22.790 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@10d92409 
    582. 

  582. 09:55:22.790 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    583. 

  583. 09:55:22.790 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    584. 

  584. 09:55:22.790 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    585. 

  585. 09:55:22.818 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55620, server: 101.37.175.111/101.37.175.111:2181 
    586. 

  586. 09:55:22.845 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd774, negotiated timeout = 40000 
    587. 

  587. 09:55:22.845 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    588. 

  588. 09:55:24.003 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    589. 

  589. 09:55:24.012 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    590. 

  590. 09:55:24.019 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.27 seconds (JVM running for 41.716) 
    591. 

  591. 09:55:24.020 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    592. 

  592. 09:55:24.048 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd774 closed 
    593. 

  593. 09:55:24.048 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd774 
    594. 

  594. 09:55:24.061 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    595. 

  595. 09:55:24.091 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$292bdcc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    596. 

  596. 09:55:24.101 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    597. 

  597. 09:55:24.101 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@81f3549 
    598. 

  598. 09:55:24.101 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    599. 

  599. 09:55:24.102 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    600. 

  600. 09:55:24.102 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    601. 

  601. 09:55:24.119 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:55632, server: 101.37.175.111/101.37.175.111:2181 
    602. 

  602. 09:55:24.158 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd775, negotiated timeout = 40000 
    603. 

  603. 09:55:24.158 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    604. 

  604. 09:55:25.306 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    605. 

  605. 09:55:25.316 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    606. 

  606. 09:55:25.322 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 1.26 seconds (JVM running for 43.018) 
    607. 

  607. 09:55:25.322 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    608. 

  608. 09:55:25.346 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3fd775 closed 
    609. 

  609. 09:55:25.346 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3fd775 
    610. 

  610. 09:55:25.359 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    611. 

  611. 09:55:27.360 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    612. 

  612. 09:55:27.360 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    613. 

  613. java.net.ConnectException: Connection refused (Connection refused)
    614. 

  614. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    615. 

  615. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    616. 

  616. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    617. 

  617. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    618. 

  618. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    619. 

  619. 	at java.net.Socket.connect(Socket.java:589)
    620. 

  620. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    621. 

  621. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    622. 

  622. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    623. 

  623. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    624. 

  624. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    625. 

  625. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    626. 

  626. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    627. 

  627. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    628. 

  628. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    629. 

  629. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    630. 

  630. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    631. 

  631. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    632. 

  632. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    633. 

  633. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    634. 

  634. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    635. 

  635. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    636. 

  636. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    637. 

  637. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    638. 

  638. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    639. 

  639. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    640. 

  640. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    641. 

  641. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    642. 

  642. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    643. 

  643. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    644. 

  644. 	at java.lang.Thread.run(Thread.java:748)
    645. 

  645. 09:55:27.360 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    646. 

  646. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    647. 

  647. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    648. 

  648. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    649. 

  649. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    650. 

  650. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    651. 

  651. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    652. 

  652. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    653. 

  653. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    654. 

  654. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    655. 

  655. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    656. 

  656. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    657. 

  657. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    658. 

  658. 	at java.lang.Thread.run(Thread.java:748)
    659. 

  659. 09:55:27.360 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    660. 

  660. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    661. 

  661. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    662. 

  662. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    663. 

  663. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    664. 

  664. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    665. 

  665. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    666. 

  666. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    667. 

  667. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    668. 

  668. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    669. 

  669. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    670. 

  670. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    671. 

  671. 	at java.lang.Thread.run(Thread.java:748)
    672. 

  672. 09:55:32.366 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    673. 

  673. 09:55:32.366 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    674. 

  674. java.net.ConnectException: Connection refused (Connection refused)
    675. 

  675. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    676. 

  676. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    677. 

  677. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    678. 

  678. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    679. 

  679. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    680. 

  680. 	at java.net.Socket.connect(Socket.java:589)
    681. 

  681. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    682. 

  682. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    683. 

  683. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    684. 

  684. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    685. 

  685. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    686. 

  686. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    687. 

  687. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    688. 

  688. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    689. 

  689. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    690. 

  690. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    691. 

  691. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    692. 

  692. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    693. 

  693. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    694. 

  694. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    695. 

  695. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    696. 

  696. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    697. 

  697. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    698. 

  698. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    699. 

  699. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    700. 

  700. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    701. 

  701. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    702. 

  702. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    703. 

  703. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    704. 

  704. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    705. 

  705. 	at java.lang.Thread.run(Thread.java:748)
    706. 

  706. 09:55:32.367 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    707. 

  707. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    708. 

  708. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    709. 

  709. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    710. 

  710. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    711. 

  711. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    712. 

  712. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    713. 

  713. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    714. 

  714. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    715. 

  715. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    716. 

  716. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    717. 

  717. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    718. 

  718. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    719. 

  719. 	at java.lang.Thread.run(Thread.java:748)
    720. 

  720. 09:55:32.367 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    721. 

  721. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    722. 

  722. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    723. 

  723. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    724. 

  724. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    725. 

  725. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    726. 

  726. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    727. 

  727. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    728. 

  728. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    729. 

  729. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    730. 

  730. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    731. 

  731. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    732. 

  732. 	at java.lang.Thread.run(Thread.java:748)
    733. 

  733. 09:55:37.373 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    734. 

  734. 09:55:37.373 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    735. 

  735. java.net.ConnectException: Connection refused (Connection refused)
    736. 

  736. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    737. 

  737. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    738. 

  738. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    739. 

  739. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    740. 

  740. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    741. 

  741. 	at java.net.Socket.connect(Socket.java:589)
    742. 

  742. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    743. 

  743. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    744. 

  744. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    745. 

  745. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    746. 

  746. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    747. 

  747. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    748. 

  748. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    749. 

  749. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    750. 

  750. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    751. 

  751. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    752. 

  752. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    753. 

  753. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    754. 

  754. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    755. 

  755. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    756. 

  756. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    757. 

  757. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    758. 

  758. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    759. 

  759. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    760. 

  760. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    761. 

  761. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    762. 

  762. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    763. 

  763. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    764. 

  764. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    765. 

  765. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    766. 

  766. 	at java.lang.Thread.run(Thread.java:748)
    767. 

  767. 09:55:37.373 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    768. 

  768. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    769. 

  769. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    770. 

  770. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    771. 

  771. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    772. 

  772. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    773. 

  773. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    774. 

  774. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    775. 

  775. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    776. 

  776. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    777. 

  777. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    778. 

  778. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    779. 

  779. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    780. 

  780. 	at java.lang.Thread.run(Thread.java:748)
    781. 

  781. 09:55:37.373 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    782. 

  782. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    783. 

  783. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    784. 

  784. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    785. 

  785. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    786. 

  786. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    787. 

  787. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    788. 

  788. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    789. 

  789. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    790. 

  790. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    791. 

  791. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    792. 

  792. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    793. 

  793. 	at java.lang.Thread.run(Thread.java:748)
    794. 

  794. 09:55:42.376 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    795. 

  795. 09:55:42.377 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    796. 

  796. java.net.ConnectException: Connection refused (Connection refused)
    797. 

  797. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    798. 

  798. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    799. 

  799. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    800. 

  800. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    801. 

  801. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    802. 

  802. 	at java.net.Socket.connect(Socket.java:589)
    803. 

  803. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    804. 

  804. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    805. 

  805. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    806. 

  806. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    807. 

  807. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    808. 

  808. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    809. 

  809. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    810. 

  810. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    811. 

  811. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    812. 

  812. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    813. 

  813. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    814. 

  814. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    815. 

  815. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    816. 

  816. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    817. 

  817. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    818. 

  818. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    819. 

  819. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    820. 

  820. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    821. 

  821. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    822. 

  822. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    823. 

  823. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    824. 

  824. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    825. 

  825. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    826. 

  826. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    827. 

  827. 	at java.lang.Thread.run(Thread.java:748)
    828. 

  828. 09:55:42.377 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    829. 

  829. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    830. 

  830. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    831. 

  831. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    832. 

  832. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    833. 

  833. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    834. 

  834. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    835. 

  835. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    836. 

  836. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    837. 

  837. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    838. 

  838. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    839. 

  839. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    840. 

  840. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    841. 

  841. 	at java.lang.Thread.run(Thread.java:748)
    842. 

  842. 09:55:42.378 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    843. 

  843. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    844. 

  844. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    845. 

  845. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    846. 

  846. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    847. 

  847. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    848. 

  848. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    849. 

  849. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    850. 

  850. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    851. 

  851. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    852. 

  852. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    853. 

  853. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    854. 

  854. 	at java.lang.Thread.run(Thread.java:748)
    855. 

  855. 09:55:47.384 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    856. 

  856. 09:55:47.384 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    857. 

  857. java.net.ConnectException: Connection refused (Connection refused)
    858. 

  858. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    859. 

  859. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    860. 

  860. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    861. 

  861. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    862. 

  862. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    863. 

  863. 	at java.net.Socket.connect(Socket.java:589)
    864. 

  864. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    865. 

  865. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    866. 

  866. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    867. 

  867. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    868. 

  868. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    869. 

  869. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    870. 

  870. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    871. 

  871. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    872. 

  872. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    873. 

  873. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    874. 

  874. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    875. 

  875. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    876. 

  876. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    877. 

  877. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    878. 

  878. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    879. 

  879. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    880. 

  880. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    881. 

  881. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    882. 

  882. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    883. 

  883. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    884. 

  884. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    885. 

  885. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    886. 

  886. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    887. 

  887. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    888. 

  888. 	at java.lang.Thread.run(Thread.java:748)
    889. 

  889. 09:55:47.384 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    890. 

  890. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    891. 

  891. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    892. 

  892. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    893. 

  893. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    894. 

  894. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    895. 

  895. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    896. 

  896. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    897. 

  897. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    898. 

  898. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    899. 

  899. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    900. 

  900. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    901. 

  901. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    902. 

  902. 	at java.lang.Thread.run(Thread.java:748)
    903. 

  903. 09:55:47.384 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    904. 

  904. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    905. 

  905. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    906. 

  906. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    907. 

  907. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    908. 

  908. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    909. 

  909. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    910. 

  910. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    911. 

  911. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    912. 

  912. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    913. 

  913. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    914. 

  914. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    915. 

  915. 	at java.lang.Thread.run(Thread.java:748)
    916. 

  916. 09:55:52.387 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    917. 

  917. 09:55:52.388 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    918. 

  918. java.net.ConnectException: Connection refused (Connection refused)
    919. 

  919. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    920. 

  920. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    921. 

  921. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    922. 

  922. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    923. 

  923. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    924. 

  924. 	at java.net.Socket.connect(Socket.java:589)
    925. 

  925. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    926. 

  926. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    927. 

  927. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    928. 

  928. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    929. 

  929. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    930. 

  930. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    931. 

  931. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    932. 

  932. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    933. 

  933. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    934. 

  934. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    935. 

  935. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    936. 

  936. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    937. 

  937. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    938. 

  938. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    939. 

  939. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    940. 

  940. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    941. 

  941. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    942. 

  942. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    943. 

  943. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    944. 

  944. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    945. 

  945. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    946. 

  946. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    947. 

  947. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    948. 

  948. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    949. 

  949. 	at java.lang.Thread.run(Thread.java:748)
    950. 

  950. 09:55:52.388 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    951. 

  951. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    952. 

  952. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    953. 

  953. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    954. 

  954. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    955. 

  955. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    956. 

  956. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    957. 

  957. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    958. 

  958. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    959. 

  959. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    960. 

  960. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    961. 

  961. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    962. 

  962. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    963. 

  963. 	at java.lang.Thread.run(Thread.java:748)
    964. 

  964. 09:55:52.388 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    965. 

  965. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    966. 

  966. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    967. 

  967. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    968. 

  968. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    969. 

  969. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    970. 

  970. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    971. 

  971. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    972. 

  972. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    973. 

  973. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    974. 

  974. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    975. 

  975. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    976. 

  976. 	at java.lang.Thread.run(Thread.java:748)
    977. 

  977. 09:55:57.391 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    978. 

  978. 09:55:57.391 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    979. 

  979. java.net.ConnectException: Connection refused (Connection refused)
    980. 

  980. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    981. 

  981. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    982. 

  982. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    983. 

  983. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    984. 

  984. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    985. 

  985. 	at java.net.Socket.connect(Socket.java:589)
    986. 

  986. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    987. 

  987. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    988. 

  988. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    989. 

  989. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    990. 

  990. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    991. 

  991. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    992. 

  992. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    993. 

  993. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    994. 

  994. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    995. 

  995. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    996. 

  996. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    997. 

  997. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    998. 

  998. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    999. 

  999. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1000. 

  1000. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1001. 

  1001. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1002. 

  1002. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1003. 

  1003. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1004. 

  1004. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1005. 

  1005. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1006. 

  1006. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1007. 

  1007. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1008. 

  1008. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1009. 

  1009. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1010. 

  1010. 	at java.lang.Thread.run(Thread.java:748)
    1011. 

  1011. 09:55:57.391 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1012. 

  1012. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1013. 

  1013. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1014. 

  1014. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1015. 

  1015. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1016. 

  1016. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1017. 

  1017. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1018. 

  1018. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1019. 

  1019. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1020. 

  1020. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1021. 

  1021. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1022. 

  1022. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1023. 

  1023. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1024. 

  1024. 	at java.lang.Thread.run(Thread.java:748)
    1025. 

  1025. 09:55:57.392 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1026. 

  1026. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1027. 

  1027. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1028. 

  1028. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1029. 

  1029. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1030. 

  1030. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1031. 

  1031. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1032. 

  1032. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1033. 

  1033. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1034. 

  1034. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1035. 

  1035. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1036. 

  1036. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1037. 

  1037. 	at java.lang.Thread.run(Thread.java:748)
    1038. 

  1038. 09:56:02.397 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1039. 

  1039. 09:56:02.399 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1040. 

  1040. java.net.ConnectException: Connection refused (Connection refused)
    1041. 

  1041. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1042. 

  1042. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1043. 

  1043. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1044. 

  1044. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1045. 

  1045. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1046. 

  1046. 	at java.net.Socket.connect(Socket.java:589)
    1047. 

  1047. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1048. 

  1048. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1049. 

  1049. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1050. 

  1050. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1051. 

  1051. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1052. 

  1052. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1053. 

  1053. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1054. 

  1054. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1055. 

  1055. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1056. 

  1056. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1057. 

  1057. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1058. 

  1058. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1059. 

  1059. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1060. 

  1060. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1061. 

  1061. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1062. 

  1062. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1063. 

  1063. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1064. 

  1064. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1065. 

  1065. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1066. 

  1066. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1067. 

  1067. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1068. 

  1068. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1069. 

  1069. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1070. 

  1070. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1071. 

  1071. 	at java.lang.Thread.run(Thread.java:748)
    1072. 

  1072. 09:56:02.399 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1073. 

  1073. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1074. 

  1074. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1075. 

  1075. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1076. 

  1076. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1077. 

  1077. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1078. 

  1078. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1079. 

  1079. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1080. 

  1080. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1081. 

  1081. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1082. 

  1082. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1083. 

  1083. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1084. 

  1084. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1085. 

  1085. 	at java.lang.Thread.run(Thread.java:748)
    1086. 

  1086. 09:56:02.399 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1087. 

  1087. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1088. 

  1088. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1089. 

  1089. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1090. 

  1090. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1091. 

  1091. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1092. 

  1092. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1093. 

  1093. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1094. 

  1094. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1095. 

  1095. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1096. 

  1096. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1097. 

  1097. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1098. 

  1098. 	at java.lang.Thread.run(Thread.java:748)
    1099. 

  1099. 09:56:07.400 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1100. 

  1100. 09:56:07.400 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1101. 

  1101. java.net.ConnectException: Connection refused (Connection refused)
    1102. 

  1102. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1103. 

  1103. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1104. 

  1104. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1105. 

  1105. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1106. 

  1106. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1107. 

  1107. 	at java.net.Socket.connect(Socket.java:589)
    1108. 

  1108. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1109. 

  1109. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1110. 

  1110. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1111. 

  1111. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1112. 

  1112. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1113. 

  1113. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1114. 

  1114. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1115. 

  1115. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1116. 

  1116. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1117. 

  1117. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1118. 

  1118. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1119. 

  1119. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1120. 

  1120. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1121. 

  1121. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1122. 

  1122. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1123. 

  1123. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1124. 

  1124. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1125. 

  1125. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1126. 

  1126. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1127. 

  1127. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1128. 

  1128. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1129. 

  1129. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1130. 

  1130. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1131. 

  1131. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1132. 

  1132. 	at java.lang.Thread.run(Thread.java:748)
    1133. 

  1133. 09:56:07.400 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1134. 

  1134. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1135. 

  1135. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1136. 

  1136. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1137. 

  1137. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1138. 

  1138. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1139. 

  1139. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1140. 

  1140. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1141. 

  1141. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1142. 

  1142. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1143. 

  1143. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1144. 

  1144. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1145. 

  1145. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1146. 

  1146. 	at java.lang.Thread.run(Thread.java:748)
    1147. 

  1147. 09:56:07.400 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1148. 

  1148. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1149. 

  1149. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1150. 

  1150. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1151. 

  1151. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1152. 

  1152. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1153. 

  1153. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1154. 

  1154. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1155. 

  1155. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1156. 

  1156. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1157. 

  1157. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1158. 

  1158. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1159. 

  1159. 	at java.lang.Thread.run(Thread.java:748)
    1160. 

  1160. 09:56:12.407 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1161. 

  1161. 09:56:12.407 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1162. 

  1162. java.net.ConnectException: Connection refused (Connection refused)
    1163. 

  1163. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1164. 

  1164. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1165. 

  1165. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1166. 

  1166. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1167. 

  1167. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1168. 

  1168. 	at java.net.Socket.connect(Socket.java:589)
    1169. 

  1169. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1170. 

  1170. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1171. 

  1171. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1172. 

  1172. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1173. 

  1173. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1174. 

  1174. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1175. 

  1175. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1176. 

  1176. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1177. 

  1177. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1178. 

  1178. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1179. 

  1179. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1180. 

  1180. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1181. 

  1181. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1182. 

  1182. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1183. 

  1183. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1184. 

  1184. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1185. 

  1185. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1186. 

  1186. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1187. 

  1187. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1188. 

  1188. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1189. 

  1189. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1190. 

  1190. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1191. 

  1191. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1192. 

  1192. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1193. 

  1193. 	at java.lang.Thread.run(Thread.java:748)
    1194. 

  1194. 09:56:12.407 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1195. 

  1195. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1196. 

  1196. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1197. 

  1197. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1198. 

  1198. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1199. 

  1199. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1200. 

  1200. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1201. 

  1201. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1202. 

  1202. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1203. 

  1203. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1204. 

  1204. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1205. 

  1205. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1206. 

  1206. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1207. 

  1207. 	at java.lang.Thread.run(Thread.java:748)
    1208. 

  1208. 09:56:12.407 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1209. 

  1209. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1210. 

  1210. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1211. 

  1211. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1212. 

  1212. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1213. 

  1213. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1214. 

  1214. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1215. 

  1215. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1216. 

  1216. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1217. 

  1217. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1218. 

  1218. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1219. 

  1219. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1220. 

  1220. 	at java.lang.Thread.run(Thread.java:748)
    1221. 

  1221. 09:56:17.412 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1222. 

  1222. 09:56:17.413 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1223. 

  1223. java.net.ConnectException: Connection refused (Connection refused)
    1224. 

  1224. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1225. 

  1225. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1226. 

  1226. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1227. 

  1227. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1228. 

  1228. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1229. 

  1229. 	at java.net.Socket.connect(Socket.java:589)
    1230. 

  1230. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1231. 

  1231. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1232. 

  1232. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1233. 

  1233. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1234. 

  1234. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1235. 

  1235. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1236. 

  1236. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1237. 

  1237. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1238. 

  1238. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1239. 

  1239. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1240. 

  1240. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1241. 

  1241. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1242. 

  1242. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1243. 

  1243. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1244. 

  1244. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1245. 

  1245. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1246. 

  1246. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1247. 

  1247. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1248. 

  1248. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1249. 

  1249. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1250. 

  1250. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1251. 

  1251. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1252. 

  1252. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1253. 

  1253. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1254. 

  1254. 	at java.lang.Thread.run(Thread.java:748)
    1255. 

  1255. 09:56:17.413 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1256. 

  1256. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1257. 

  1257. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1258. 

  1258. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1259. 

  1259. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1260. 

  1260. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1261. 

  1261. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1262. 

  1262. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1263. 

  1263. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1264. 

  1264. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1265. 

  1265. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1266. 

  1266. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1267. 

  1267. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1268. 

  1268. 	at java.lang.Thread.run(Thread.java:748)
    1269. 

  1269. 09:56:17.413 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1270. 

  1270. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1271. 

  1271. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1272. 

  1272. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1273. 

  1273. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1274. 

  1274. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1275. 

  1275. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1276. 

  1276. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1277. 

  1277. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1278. 

  1278. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1279. 

  1279. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1280. 

  1280. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1281. 

  1281. 	at java.lang.Thread.run(Thread.java:748)
    1282. 

  1282. 09:56:22.419 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1283. 

  1283. 09:56:22.420 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1284. 

  1284. java.net.ConnectException: Connection refused (Connection refused)
    1285. 

  1285. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1286. 

  1286. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1287. 

  1287. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1288. 

  1288. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1289. 

  1289. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1290. 

  1290. 	at java.net.Socket.connect(Socket.java:589)
    1291. 

  1291. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1292. 

  1292. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1293. 

  1293. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1294. 

  1294. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1295. 

  1295. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1296. 

  1296. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1297. 

  1297. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1298. 

  1298. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1299. 

  1299. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1300. 

  1300. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1301. 

  1301. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1302. 

  1302. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1303. 

  1303. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1304. 

  1304. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1305. 

  1305. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1306. 

  1306. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1307. 

  1307. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1308. 

  1308. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1309. 

  1309. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1310. 

  1310. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1311. 

  1311. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1312. 

  1312. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1313. 

  1313. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1314. 

  1314. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1315. 

  1315. 	at java.lang.Thread.run(Thread.java:748)
    1316. 

  1316. 09:56:22.421 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1317. 

  1317. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1318. 

  1318. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1319. 

  1319. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1320. 

  1320. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1321. 

  1321. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1322. 

  1322. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1323. 

  1323. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1324. 

  1324. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1325. 

  1325. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1326. 

  1326. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1327. 

  1327. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1328. 

  1328. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1329. 

  1329. 	at java.lang.Thread.run(Thread.java:748)
    1330. 

  1330. 09:56:22.421 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1331. 

  1331. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1332. 

  1332. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1333. 

  1333. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1334. 

  1334. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1335. 

  1335. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1336. 

  1336. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1337. 

  1337. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1338. 

  1338. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1339. 

  1339. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1340. 

  1340. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1341. 

  1341. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1342. 

  1342. 	at java.lang.Thread.run(Thread.java:748)
    1343. 

  1343. 09:56:27.427 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1344. 

  1344. 09:56:27.427 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1345. 

  1345. java.net.ConnectException: Connection refused (Connection refused)
    1346. 

  1346. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1347. 

  1347. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1348. 

  1348. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1349. 

  1349. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1350. 

  1350. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1351. 

  1351. 	at java.net.Socket.connect(Socket.java:589)
    1352. 

  1352. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1353. 

  1353. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1354. 

  1354. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1355. 

  1355. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1356. 

  1356. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1357. 

  1357. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1358. 

  1358. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1359. 

  1359. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1360. 

  1360. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1361. 

  1361. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1362. 

  1362. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1363. 

  1363. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1364. 

  1364. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1365. 

  1365. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1366. 

  1366. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1367. 

  1367. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1368. 

  1368. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1369. 

  1369. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1370. 

  1370. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1371. 

  1371. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1372. 

  1372. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1373. 

  1373. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1374. 

  1374. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1375. 

  1375. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1376. 

  1376. 	at java.lang.Thread.run(Thread.java:748)
    1377. 

  1377. 09:56:27.427 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1378. 

  1378. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1379. 

  1379. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1380. 

  1380. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1381. 

  1381. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1382. 

  1382. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1383. 

  1383. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1384. 

  1384. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1385. 

  1385. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1386. 

  1386. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1387. 

  1387. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1388. 

  1388. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1389. 

  1389. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1390. 

  1390. 	at java.lang.Thread.run(Thread.java:748)
    1391. 

  1391. 09:56:27.427 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1392. 

  1392. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1393. 

  1393. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1394. 

  1394. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1395. 

  1395. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1396. 

  1396. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1397. 

  1397. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1398. 

  1398. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1399. 

  1399. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1400. 

  1400. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1401. 

  1401. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1402. 

  1402. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1403. 

  1403. 	at java.lang.Thread.run(Thread.java:748)
    1404. 

  1404. 09:56:32.433 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1405. 

  1405. 09:56:32.434 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1406. 

  1406. java.net.ConnectException: Connection refused (Connection refused)
    1407. 

  1407. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1408. 

  1408. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1409. 

  1409. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1410. 

  1410. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1411. 

  1411. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1412. 

  1412. 	at java.net.Socket.connect(Socket.java:589)
    1413. 

  1413. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1414. 

  1414. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1415. 

  1415. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1416. 

  1416. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1417. 

  1417. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1418. 

  1418. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1419. 

  1419. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1420. 

  1420. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1421. 

  1421. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1422. 

  1422. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1423. 

  1423. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1424. 

  1424. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1425. 

  1425. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1426. 

  1426. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1427. 

  1427. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1428. 

  1428. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1429. 

  1429. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1430. 

  1430. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1431. 

  1431. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1432. 

  1432. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1433. 

  1433. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1434. 

  1434. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1435. 

  1435. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1436. 

  1436. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1437. 

  1437. 	at java.lang.Thread.run(Thread.java:748)
    1438. 

  1438. 09:56:32.434 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1439. 

  1439. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1440. 

  1440. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1441. 

  1441. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1442. 

  1442. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1443. 

  1443. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1444. 

  1444. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1445. 

  1445. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1446. 

  1446. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1447. 

  1447. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1448. 

  1448. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1449. 

  1449. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1450. 

  1450. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1451. 

  1451. 	at java.lang.Thread.run(Thread.java:748)
    1452. 

  1452. 09:56:32.435 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1453. 

  1453. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1454. 

  1454. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1455. 

  1455. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1456. 

  1456. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1457. 

  1457. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1458. 

  1458. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1459. 

  1459. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1460. 

  1460. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1461. 

  1461. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1462. 

  1462. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1463. 

  1463. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1464. 

  1464. 	at java.lang.Thread.run(Thread.java:748)
    1465. 

  1465. 09:56:37.439 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1466. 

  1466. 09:56:37.439 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1467. 

  1467. java.net.ConnectException: Connection refused (Connection refused)
    1468. 

  1468. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1469. 

  1469. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1470. 

  1470. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1471. 

  1471. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1472. 

  1472. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1473. 

  1473. 	at java.net.Socket.connect(Socket.java:589)
    1474. 

  1474. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1475. 

  1475. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1476. 

  1476. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1477. 

  1477. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1478. 

  1478. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1479. 

  1479. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1480. 

  1480. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1481. 

  1481. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1482. 

  1482. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1483. 

  1483. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1484. 

  1484. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1485. 

  1485. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1486. 

  1486. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1487. 

  1487. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1488. 

  1488. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1489. 

  1489. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1490. 

  1490. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1491. 

  1491. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1492. 

  1492. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1493. 

  1493. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1494. 

  1494. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1495. 

  1495. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1496. 

  1496. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1497. 

  1497. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1498. 

  1498. 	at java.lang.Thread.run(Thread.java:748)
    1499. 

  1499. 09:56:37.439 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1500. 

  1500. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1501. 

  1501. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1502. 

  1502. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1503. 

  1503. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1504. 

  1504. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1505. 

  1505. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1506. 

  1506. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1507. 

  1507. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1508. 

  1508. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1509. 

  1509. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1510. 

  1510. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1511. 

  1511. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1512. 

  1512. 	at java.lang.Thread.run(Thread.java:748)
    1513. 

  1513. 09:56:37.439 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1514. 

  1514. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1515. 

  1515. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1516. 

  1516. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1517. 

  1517. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1518. 

  1518. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1519. 

  1519. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1520. 

  1520. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1521. 

  1521. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1522. 

  1522. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1523. 

  1523. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1524. 

  1524. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1525. 

  1525. 	at java.lang.Thread.run(Thread.java:748)
    1526. 

  1526. 09:56:42.444 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1527. 

  1527. 09:56:42.444 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1528. 

  1528. java.net.ConnectException: Connection refused (Connection refused)
    1529. 

  1529. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1530. 

  1530. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1531. 

  1531. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1532. 

  1532. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1533. 

  1533. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1534. 

  1534. 	at java.net.Socket.connect(Socket.java:589)
    1535. 

  1535. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1536. 

  1536. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1537. 

  1537. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1538. 

  1538. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1539. 

  1539. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1540. 

  1540. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1541. 

  1541. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1542. 

  1542. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1543. 

  1543. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1544. 

  1544. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1545. 

  1545. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1546. 

  1546. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1547. 

  1547. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1548. 

  1548. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1549. 

  1549. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1550. 

  1550. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1551. 

  1551. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1552. 

  1552. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1553. 

  1553. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1554. 

  1554. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1555. 

  1555. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1556. 

  1556. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1557. 

  1557. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1558. 

  1558. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1559. 

  1559. 	at java.lang.Thread.run(Thread.java:748)
    1560. 

  1560. 09:56:42.445 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1561. 

  1561. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1562. 

  1562. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1563. 

  1563. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1564. 

  1564. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1565. 

  1565. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1566. 

  1566. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1567. 

  1567. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1568. 

  1568. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1569. 

  1569. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1570. 

  1570. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1571. 

  1571. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1572. 

  1572. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1573. 

  1573. 	at java.lang.Thread.run(Thread.java:748)
    1574. 

  1574. 09:56:42.445 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1575. 

  1575. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1576. 

  1576. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1577. 

  1577. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1578. 

  1578. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1579. 

  1579. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1580. 

  1580. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1581. 

  1581. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1582. 

  1582. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1583. 

  1583. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1584. 

  1584. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1585. 

  1585. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1586. 

  1586. 	at java.lang.Thread.run(Thread.java:748)
    1587. 

  1587. 09:56:47.447 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1588. 

  1588. 09:56:47.447 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1589. 

  1589. java.net.ConnectException: Connection refused (Connection refused)
    1590. 

  1590. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1591. 

  1591. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1592. 

  1592. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1593. 

  1593. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1594. 

  1594. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1595. 

  1595. 	at java.net.Socket.connect(Socket.java:589)
    1596. 

  1596. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1597. 

  1597. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1598. 

  1598. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1599. 

  1599. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1600. 

  1600. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1601. 

  1601. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1602. 

  1602. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1603. 

  1603. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1604. 

  1604. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1605. 

  1605. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1606. 

  1606. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1607. 

  1607. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1608. 

  1608. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1609. 

  1609. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1610. 

  1610. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1611. 

  1611. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1612. 

  1612. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1613. 

  1613. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1614. 

  1614. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1615. 

  1615. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1616. 

  1616. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1617. 

  1617. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1618. 

  1618. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1619. 

  1619. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1620. 

  1620. 	at java.lang.Thread.run(Thread.java:748)
    1621. 

  1621. 09:56:47.448 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1622. 

  1622. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1623. 

  1623. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1624. 

  1624. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1625. 

  1625. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1626. 

  1626. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1627. 

  1627. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1628. 

  1628. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1629. 

  1629. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1630. 

  1630. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1631. 

  1631. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1632. 

  1632. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1633. 

  1633. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1634. 

  1634. 	at java.lang.Thread.run(Thread.java:748)
    1635. 

  1635. 09:56:47.448 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1636. 

  1636. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1637. 

  1637. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1638. 

  1638. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1639. 

  1639. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1640. 

  1640. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1641. 

  1641. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1642. 

  1642. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1643. 

  1643. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1644. 

  1644. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1645. 

  1645. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1646. 

  1646. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1647. 

  1647. 	at java.lang.Thread.run(Thread.java:748)
    1648. 

  1648. 09:56:52.452 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1649. 

  1649. 09:56:52.452 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1650. 

  1650. java.net.ConnectException: Connection refused (Connection refused)
    1651. 

  1651. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1652. 

  1652. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1653. 

  1653. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1654. 

  1654. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1655. 

  1655. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1656. 

  1656. 	at java.net.Socket.connect(Socket.java:589)
    1657. 

  1657. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1658. 

  1658. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1659. 

  1659. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1660. 

  1660. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1661. 

  1661. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1662. 

  1662. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1663. 

  1663. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1664. 

  1664. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1665. 

  1665. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1666. 

  1666. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1667. 

  1667. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1668. 

  1668. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1669. 

  1669. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1670. 

  1670. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1671. 

  1671. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1672. 

  1672. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1673. 

  1673. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1674. 

  1674. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1675. 

  1675. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1676. 

  1676. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1677. 

  1677. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1678. 

  1678. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1679. 

  1679. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1680. 

  1680. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1681. 

  1681. 	at java.lang.Thread.run(Thread.java:748)
    1682. 

  1682. 09:56:52.452 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1683. 

  1683. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1684. 

  1684. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1685. 

  1685. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1686. 

  1686. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1687. 

  1687. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1688. 

  1688. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1689. 

  1689. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1690. 

  1690. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1691. 

  1691. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1692. 

  1692. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1693. 

  1693. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1694. 

  1694. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1695. 

  1695. 	at java.lang.Thread.run(Thread.java:748)
    1696. 

  1696. 09:56:52.452 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1697. 

  1697. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1698. 

  1698. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1699. 

  1699. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1700. 

  1700. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1701. 

  1701. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1702. 

  1702. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1703. 

  1703. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1704. 

  1704. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1705. 

  1705. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1706. 

  1706. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1707. 

  1707. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1708. 

  1708. 	at java.lang.Thread.run(Thread.java:748)
    1709. 

  1709. 09:56:57.457 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1710. 

  1710. 09:56:57.457 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1711. 

  1711. java.net.ConnectException: Connection refused (Connection refused)
    1712. 

  1712. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1713. 

  1713. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1714. 

  1714. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1715. 

  1715. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1716. 

  1716. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1717. 

  1717. 	at java.net.Socket.connect(Socket.java:589)
    1718. 

  1718. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1719. 

  1719. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1720. 

  1720. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1721. 

  1721. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1722. 

  1722. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1723. 

  1723. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1724. 

  1724. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1725. 

  1725. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1726. 

  1726. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1727. 

  1727. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1728. 

  1728. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1729. 

  1729. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1730. 

  1730. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1731. 

  1731. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1732. 

  1732. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1733. 

  1733. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1734. 

  1734. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1735. 

  1735. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1736. 

  1736. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1737. 

  1737. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1738. 

  1738. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1739. 

  1739. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1740. 

  1740. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1741. 

  1741. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1742. 

  1742. 	at java.lang.Thread.run(Thread.java:748)
    1743. 

  1743. 09:56:57.458 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1744. 

  1744. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1745. 

  1745. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1746. 

  1746. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1747. 

  1747. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1748. 

  1748. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1749. 

  1749. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1750. 

  1750. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1751. 

  1751. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1752. 

  1752. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1753. 

  1753. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1754. 

  1754. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1755. 

  1755. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1756. 

  1756. 	at java.lang.Thread.run(Thread.java:748)
    1757. 

  1757. 09:56:57.458 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1758. 

  1758. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1759. 

  1759. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1760. 

  1760. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1761. 

  1761. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1762. 

  1762. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1763. 

  1763. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1764. 

  1764. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1765. 

  1765. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1766. 

  1766. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1767. 

  1767. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1768. 

  1768. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1769. 

  1769. 	at java.lang.Thread.run(Thread.java:748)
    1770. 

  1770. 09:57:02.463 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1771. 

  1771. 09:57:02.463 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1772. 

  1772. java.net.ConnectException: Connection refused (Connection refused)
    1773. 

  1773. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1774. 

  1774. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1775. 

  1775. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1776. 

  1776. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1777. 

  1777. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1778. 

  1778. 	at java.net.Socket.connect(Socket.java:589)
    1779. 

  1779. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1780. 

  1780. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1781. 

  1781. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1782. 

  1782. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1783. 

  1783. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1784. 

  1784. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1785. 

  1785. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1786. 

  1786. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1787. 

  1787. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1788. 

  1788. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1789. 

  1789. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1790. 

  1790. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1791. 

  1791. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1792. 

  1792. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1793. 

  1793. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1794. 

  1794. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1795. 

  1795. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1796. 

  1796. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1797. 

  1797. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1798. 

  1798. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1799. 

  1799. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1800. 

  1800. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1801. 

  1801. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1802. 

  1802. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1803. 

  1803. 	at java.lang.Thread.run(Thread.java:748)
    1804. 

  1804. 09:57:02.463 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1805. 

  1805. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1806. 

  1806. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1807. 

  1807. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1808. 

  1808. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1809. 

  1809. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1810. 

  1810. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1811. 

  1811. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1812. 

  1812. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1813. 

  1813. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1814. 

  1814. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1815. 

  1815. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1816. 

  1816. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1817. 

  1817. 	at java.lang.Thread.run(Thread.java:748)
    1818. 

  1818. 09:57:02.463 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1819. 

  1819. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1820. 

  1820. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1821. 

  1821. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1822. 

  1822. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1823. 

  1823. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1824. 

  1824. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1825. 

  1825. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1826. 

  1826. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1827. 

  1827. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1828. 

  1828. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1829. 

  1829. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1830. 

  1830. 	at java.lang.Thread.run(Thread.java:748)
    1831. 

  1831. 09:57:07.468 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1832. 

  1832. 09:57:07.468 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1833. 

  1833. java.net.ConnectException: Connection refused (Connection refused)
    1834. 

  1834. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1835. 

  1835. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1836. 

  1836. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1837. 

  1837. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1838. 

  1838. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1839. 

  1839. 	at java.net.Socket.connect(Socket.java:589)
    1840. 

  1840. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1841. 

  1841. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1842. 

  1842. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1843. 

  1843. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1844. 

  1844. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1845. 

  1845. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1846. 

  1846. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1847. 

  1847. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1848. 

  1848. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1849. 

  1849. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1850. 

  1850. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1851. 

  1851. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1852. 

  1852. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1853. 

  1853. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1854. 

  1854. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1855. 

  1855. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1856. 

  1856. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1857. 

  1857. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1858. 

  1858. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1859. 

  1859. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1860. 

  1860. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1861. 

  1861. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1862. 

  1862. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1863. 

  1863. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1864. 

  1864. 	at java.lang.Thread.run(Thread.java:748)
    1865. 

  1865. 09:57:07.468 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1866. 

  1866. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1867. 

  1867. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1868. 

  1868. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1869. 

  1869. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1870. 

  1870. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1871. 

  1871. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1872. 

  1872. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1873. 

  1873. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1874. 

  1874. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1875. 

  1875. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1876. 

  1876. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1877. 

  1877. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1878. 

  1878. 	at java.lang.Thread.run(Thread.java:748)
    1879. 

  1879. 09:57:07.468 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1880. 

  1880. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1881. 

  1881. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1882. 

  1882. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1883. 

  1883. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1884. 

  1884. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1885. 

  1885. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1886. 

  1886. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1887. 

  1887. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1888. 

  1888. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1889. 

  1889. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1890. 

  1890. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1891. 

  1891. 	at java.lang.Thread.run(Thread.java:748)
    1892. 

  1892. 09:57:12.473 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1893. 

  1893. 09:57:12.473 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1894. 

  1894. java.net.ConnectException: Connection refused (Connection refused)
    1895. 

  1895. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1896. 

  1896. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1897. 

  1897. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1898. 

  1898. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1899. 

  1899. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1900. 

  1900. 	at java.net.Socket.connect(Socket.java:589)
    1901. 

  1901. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1902. 

  1902. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1903. 

  1903. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1904. 

  1904. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1905. 

  1905. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1906. 

  1906. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1907. 

  1907. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1908. 

  1908. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1909. 

  1909. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1910. 

  1910. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1911. 

  1911. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1912. 

  1912. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1913. 

  1913. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1914. 

  1914. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1915. 

  1915. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1916. 

  1916. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1917. 

  1917. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1918. 

  1918. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1919. 

  1919. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1920. 

  1920. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1921. 

  1921. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1922. 

  1922. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1923. 

  1923. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1924. 

  1924. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1925. 

  1925. 	at java.lang.Thread.run(Thread.java:748)
    1926. 

  1926. 09:57:12.473 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1927. 

  1927. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1928. 

  1928. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1929. 

  1929. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1930. 

  1930. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1931. 

  1931. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1932. 

  1932. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1933. 

  1933. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1934. 

  1934. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1935. 

  1935. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1936. 

  1936. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1937. 

  1937. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1938. 

  1938. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1939. 

  1939. 	at java.lang.Thread.run(Thread.java:748)
    1940. 

  1940. 09:57:12.474 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1941. 

  1941. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1942. 

  1942. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1943. 

  1943. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1944. 

  1944. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1945. 

  1945. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1946. 

  1946. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1947. 

  1947. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1948. 

  1948. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1949. 

  1949. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1950. 

  1950. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1951. 

  1951. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1952. 

  1952. 	at java.lang.Thread.run(Thread.java:748)
    1953. 

  1953. 09:57:17.479 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    1954. 

  1954. 09:57:17.479 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1955. 

  1955. java.net.ConnectException: Connection refused (Connection refused)
    1956. 

  1956. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1957. 

  1957. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1958. 

  1958. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1959. 

  1959. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1960. 

  1960. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1961. 

  1961. 	at java.net.Socket.connect(Socket.java:589)
    1962. 

  1962. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1963. 

  1963. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1964. 

  1964. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1965. 

  1965. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1966. 

  1966. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1967. 

  1967. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1968. 

  1968. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    1969. 

  1969. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    1970. 

  1970. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    1971. 

  1971. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    1972. 

  1972. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    1973. 

  1973. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    1974. 

  1974. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1975. 

  1975. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1976. 

  1976. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1977. 

  1977. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1978. 

  1978. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1979. 

  1979. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1980. 

  1980. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1981. 

  1981. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1982. 

  1982. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1983. 

  1983. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1984. 

  1984. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1985. 

  1985. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1986. 

  1986. 	at java.lang.Thread.run(Thread.java:748)
    1987. 

  1987. 09:57:17.480 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1988. 

  1988. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    1989. 

  1989. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1990. 

  1990. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1991. 

  1991. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1992. 

  1992. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1993. 

  1993. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1994. 

  1994. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1995. 

  1995. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1996. 

  1996. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1997. 

  1997. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1998. 

  1998. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1999. 

  1999. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2000. 

  2000. 	at java.lang.Thread.run(Thread.java:748)
    2001. 

  2001. 09:57:17.480 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2002. 

  2002. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2003. 

  2003. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2004. 

  2004. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2005. 

  2005. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2006. 

  2006. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2007. 

  2007. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2008. 

  2008. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2009. 

  2009. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2010. 

  2010. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2011. 

  2011. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2012. 

  2012. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2013. 

  2013. 	at java.lang.Thread.run(Thread.java:748)
    2014. 

  2014. 09:57:22.485 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2015. 

  2015. 09:57:22.486 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2016. 

  2016. java.net.ConnectException: Connection refused (Connection refused)
    2017. 

  2017. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2018. 

  2018. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2019. 

  2019. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2020. 

  2020. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2021. 

  2021. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2022. 

  2022. 	at java.net.Socket.connect(Socket.java:589)
    2023. 

  2023. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2024. 

  2024. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2025. 

  2025. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2026. 

  2026. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2027. 

  2027. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2028. 

  2028. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2029. 

  2029. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2030. 

  2030. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2031. 

  2031. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2032. 

  2032. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2033. 

  2033. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2034. 

  2034. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2035. 

  2035. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2036. 

  2036. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2037. 

  2037. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2038. 

  2038. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2039. 

  2039. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2040. 

  2040. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2041. 

  2041. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2042. 

  2042. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2043. 

  2043. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2044. 

  2044. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2045. 

  2045. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2046. 

  2046. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2047. 

  2047. 	at java.lang.Thread.run(Thread.java:748)
    2048. 

  2048. 09:57:22.487 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2049. 

  2049. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2050. 

  2050. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2051. 

  2051. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2052. 

  2052. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2053. 

  2053. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2054. 

  2054. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2055. 

  2055. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2056. 

  2056. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2057. 

  2057. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2058. 

  2058. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2059. 

  2059. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2060. 

  2060. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2061. 

  2061. 	at java.lang.Thread.run(Thread.java:748)
    2062. 

  2062. 09:57:22.487 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2063. 

  2063. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2064. 

  2064. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2065. 

  2065. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2066. 

  2066. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2067. 

  2067. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2068. 

  2068. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2069. 

  2069. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2070. 

  2070. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2071. 

  2071. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2072. 

  2072. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2073. 

  2073. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2074. 

  2074. 	at java.lang.Thread.run(Thread.java:748)
    2075. 

  2075. 09:57:27.492 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2076. 

  2076. 09:57:27.492 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2077. 

  2077. java.net.ConnectException: Connection refused (Connection refused)
    2078. 

  2078. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2079. 

  2079. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2080. 

  2080. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2081. 

  2081. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2082. 

  2082. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2083. 

  2083. 	at java.net.Socket.connect(Socket.java:589)
    2084. 

  2084. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2085. 

  2085. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2086. 

  2086. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2087. 

  2087. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2088. 

  2088. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2089. 

  2089. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2090. 

  2090. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2091. 

  2091. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2092. 

  2092. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2093. 

  2093. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2094. 

  2094. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2095. 

  2095. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2096. 

  2096. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2097. 

  2097. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2098. 

  2098. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2099. 

  2099. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2100. 

  2100. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2101. 

  2101. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2102. 

  2102. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2103. 

  2103. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2104. 

  2104. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2105. 

  2105. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2106. 

  2106. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2107. 

  2107. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2108. 

  2108. 	at java.lang.Thread.run(Thread.java:748)
    2109. 

  2109. 09:57:27.492 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2110. 

  2110. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2111. 

  2111. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2112. 

  2112. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2113. 

  2113. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2114. 

  2114. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2115. 

  2115. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2116. 

  2116. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2117. 

  2117. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2118. 

  2118. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2119. 

  2119. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2120. 

  2120. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2121. 

  2121. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2122. 

  2122. 	at java.lang.Thread.run(Thread.java:748)
    2123. 

  2123. 09:57:27.493 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2124. 

  2124. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2125. 

  2125. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2126. 

  2126. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2127. 

  2127. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2128. 

  2128. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2129. 

  2129. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2130. 

  2130. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2131. 

  2131. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2132. 

  2132. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2133. 

  2133. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2134. 

  2134. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2135. 

  2135. 	at java.lang.Thread.run(Thread.java:748)
    2136. 

  2136. 09:57:32.498 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2137. 

  2137. 09:57:32.498 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2138. 

  2138. java.net.ConnectException: Connection refused (Connection refused)
    2139. 

  2139. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2140. 

  2140. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2141. 

  2141. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2142. 

  2142. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2143. 

  2143. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2144. 

  2144. 	at java.net.Socket.connect(Socket.java:589)
    2145. 

  2145. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2146. 

  2146. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2147. 

  2147. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2148. 

  2148. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2149. 

  2149. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2150. 

  2150. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2151. 

  2151. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2152. 

  2152. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2153. 

  2153. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2154. 

  2154. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2155. 

  2155. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2156. 

  2156. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2157. 

  2157. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2158. 

  2158. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2159. 

  2159. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2160. 

  2160. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2161. 

  2161. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2162. 

  2162. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2163. 

  2163. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2164. 

  2164. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2165. 

  2165. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2166. 

  2166. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2167. 

  2167. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2168. 

  2168. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2169. 

  2169. 	at java.lang.Thread.run(Thread.java:748)
    2170. 

  2170. 09:57:32.498 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2171. 

  2171. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2172. 

  2172. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2173. 

  2173. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2174. 

  2174. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2175. 

  2175. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2176. 

  2176. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2177. 

  2177. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2178. 

  2178. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2179. 

  2179. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2180. 

  2180. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2181. 

  2181. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2182. 

  2182. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2183. 

  2183. 	at java.lang.Thread.run(Thread.java:748)
    2184. 

  2184. 09:57:32.498 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2185. 

  2185. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2186. 

  2186. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2187. 

  2187. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2188. 

  2188. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2189. 

  2189. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2190. 

  2190. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2191. 

  2191. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2192. 

  2192. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2193. 

  2193. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2194. 

  2194. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2195. 

  2195. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2196. 

  2196. 	at java.lang.Thread.run(Thread.java:748)
    2197. 

  2197. 09:57:37.501 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2198. 

  2198. 09:57:37.502 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2199. 

  2199. java.net.ConnectException: Connection refused (Connection refused)
    2200. 

  2200. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2201. 

  2201. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2202. 

  2202. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2203. 

  2203. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2204. 

  2204. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2205. 

  2205. 	at java.net.Socket.connect(Socket.java:589)
    2206. 

  2206. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2207. 

  2207. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2208. 

  2208. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2209. 

  2209. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2210. 

  2210. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2211. 

  2211. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2212. 

  2212. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2213. 

  2213. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2214. 

  2214. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2215. 

  2215. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2216. 

  2216. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2217. 

  2217. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2218. 

  2218. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2219. 

  2219. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2220. 

  2220. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2221. 

  2221. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2222. 

  2222. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2223. 

  2223. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2224. 

  2224. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2225. 

  2225. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2226. 

  2226. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2227. 

  2227. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2228. 

  2228. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2229. 

  2229. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2230. 

  2230. 	at java.lang.Thread.run(Thread.java:748)
    2231. 

  2231. 09:57:37.502 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2232. 

  2232. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2233. 

  2233. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2234. 

  2234. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2235. 

  2235. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2236. 

  2236. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2237. 

  2237. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2238. 

  2238. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2239. 

  2239. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2240. 

  2240. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2241. 

  2241. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2242. 

  2242. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2243. 

  2243. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2244. 

  2244. 	at java.lang.Thread.run(Thread.java:748)
    2245. 

  2245. 09:57:37.502 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2246. 

  2246. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2247. 

  2247. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2248. 

  2248. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2249. 

  2249. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2250. 

  2250. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2251. 

  2251. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2252. 

  2252. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2253. 

  2253. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2254. 

  2254. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2255. 

  2255. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2256. 

  2256. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2257. 

  2257. 	at java.lang.Thread.run(Thread.java:748)
    2258. 

  2258. 09:57:42.505 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2259. 

  2259. 09:57:42.507 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2260. 

  2260. java.net.ConnectException: Connection refused (Connection refused)
    2261. 

  2261. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2262. 

  2262. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2263. 

  2263. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2264. 

  2264. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2265. 

  2265. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2266. 

  2266. 	at java.net.Socket.connect(Socket.java:589)
    2267. 

  2267. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2268. 

  2268. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2269. 

  2269. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2270. 

  2270. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2271. 

  2271. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2272. 

  2272. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2273. 

  2273. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2274. 

  2274. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2275. 

  2275. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2276. 

  2276. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2277. 

  2277. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2278. 

  2278. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2279. 

  2279. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2280. 

  2280. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2281. 

  2281. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2282. 

  2282. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2283. 

  2283. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2284. 

  2284. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2285. 

  2285. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2286. 

  2286. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2287. 

  2287. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2288. 

  2288. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2289. 

  2289. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2290. 

  2290. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2291. 

  2291. 	at java.lang.Thread.run(Thread.java:748)
    2292. 

  2292. 09:57:42.508 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2293. 

  2293. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2294. 

  2294. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2295. 

  2295. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2296. 

  2296. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2297. 

  2297. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2298. 

  2298. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2299. 

  2299. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2300. 

  2300. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2301. 

  2301. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2302. 

  2302. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2303. 

  2303. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2304. 

  2304. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2305. 

  2305. 	at java.lang.Thread.run(Thread.java:748)
    2306. 

  2306. 09:57:42.508 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2307. 

  2307. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2308. 

  2308. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2309. 

  2309. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2310. 

  2310. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2311. 

  2311. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2312. 

  2312. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2313. 

  2313. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2314. 

  2314. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2315. 

  2315. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2316. 

  2316. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2317. 

  2317. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2318. 

  2318. 	at java.lang.Thread.run(Thread.java:748)
    2319. 

  2319. 09:57:47.511 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2320. 

  2320. 09:57:47.512 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2321. 

  2321. java.net.ConnectException: Connection refused (Connection refused)
    2322. 

  2322. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2323. 

  2323. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2324. 

  2324. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2325. 

  2325. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2326. 

  2326. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2327. 

  2327. 	at java.net.Socket.connect(Socket.java:589)
    2328. 

  2328. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2329. 

  2329. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2330. 

  2330. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2331. 

  2331. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2332. 

  2332. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2333. 

  2333. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2334. 

  2334. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2335. 

  2335. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2336. 

  2336. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2337. 

  2337. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2338. 

  2338. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2339. 

  2339. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2340. 

  2340. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2341. 

  2341. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2342. 

  2342. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2343. 

  2343. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2344. 

  2344. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2345. 

  2345. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2346. 

  2346. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2347. 

  2347. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2348. 

  2348. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2349. 

  2349. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2350. 

  2350. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2351. 

  2351. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2352. 

  2352. 	at java.lang.Thread.run(Thread.java:748)
    2353. 

  2353. 09:57:47.512 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2354. 

  2354. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2355. 

  2355. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2356. 

  2356. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2357. 

  2357. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2358. 

  2358. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2359. 

  2359. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2360. 

  2360. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2361. 

  2361. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2362. 

  2362. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2363. 

  2363. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2364. 

  2364. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2365. 

  2365. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2366. 

  2366. 	at java.lang.Thread.run(Thread.java:748)
    2367. 

  2367. 09:57:47.512 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2368. 

  2368. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2369. 

  2369. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2370. 

  2370. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2371. 

  2371. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2372. 

  2372. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2373. 

  2373. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2374. 

  2374. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2375. 

  2375. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2376. 

  2376. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2377. 

  2377. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2378. 

  2378. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2379. 

  2379. 	at java.lang.Thread.run(Thread.java:748)
    2380. 

  2380. 09:57:52.518 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2381. 

  2381. 09:57:52.519 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2382. 

  2382. java.net.ConnectException: Connection refused (Connection refused)
    2383. 

  2383. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2384. 

  2384. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2385. 

  2385. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2386. 

  2386. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2387. 

  2387. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2388. 

  2388. 	at java.net.Socket.connect(Socket.java:589)
    2389. 

  2389. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2390. 

  2390. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2391. 

  2391. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2392. 

  2392. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2393. 

  2393. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2394. 

  2394. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2395. 

  2395. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2396. 

  2396. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2397. 

  2397. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2398. 

  2398. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2399. 

  2399. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2400. 

  2400. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2401. 

  2401. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2402. 

  2402. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2403. 

  2403. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2404. 

  2404. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2405. 

  2405. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2406. 

  2406. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2407. 

  2407. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2408. 

  2408. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2409. 

  2409. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2410. 

  2410. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2411. 

  2411. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2412. 

  2412. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2413. 

  2413. 	at java.lang.Thread.run(Thread.java:748)
    2414. 

  2414. 09:57:52.519 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2415. 

  2415. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2416. 

  2416. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2417. 

  2417. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2418. 

  2418. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2419. 

  2419. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2420. 

  2420. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2421. 

  2421. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2422. 

  2422. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2423. 

  2423. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2424. 

  2424. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2425. 

  2425. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2426. 

  2426. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2427. 

  2427. 	at java.lang.Thread.run(Thread.java:748)
    2428. 

  2428. 09:57:52.520 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2429. 

  2429. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2430. 

  2430. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2431. 

  2431. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2432. 

  2432. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2433. 

  2433. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2434. 

  2434. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2435. 

  2435. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2436. 

  2436. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2437. 

  2437. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2438. 

  2438. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2439. 

  2439. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2440. 

  2440. 	at java.lang.Thread.run(Thread.java:748)
    2441. 

  2441. 09:57:57.521 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2442. 

  2442. 09:57:57.521 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2443. 

  2443. java.net.ConnectException: Connection refused (Connection refused)
    2444. 

  2444. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2445. 

  2445. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2446. 

  2446. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2447. 

  2447. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2448. 

  2448. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2449. 

  2449. 	at java.net.Socket.connect(Socket.java:589)
    2450. 

  2450. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2451. 

  2451. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2452. 

  2452. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2453. 

  2453. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2454. 

  2454. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2455. 

  2455. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2456. 

  2456. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2457. 

  2457. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2458. 

  2458. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2459. 

  2459. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2460. 

  2460. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2461. 

  2461. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2462. 

  2462. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2463. 

  2463. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2464. 

  2464. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2465. 

  2465. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2466. 

  2466. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2467. 

  2467. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2468. 

  2468. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2469. 

  2469. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2470. 

  2470. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2471. 

  2471. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2472. 

  2472. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2473. 

  2473. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2474. 

  2474. 	at java.lang.Thread.run(Thread.java:748)
    2475. 

  2475. 09:57:57.522 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2476. 

  2476. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2477. 

  2477. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2478. 

  2478. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2479. 

  2479. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2480. 

  2480. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2481. 

  2481. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2482. 

  2482. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2483. 

  2483. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2484. 

  2484. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2485. 

  2485. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2486. 

  2486. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2487. 

  2487. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2488. 

  2488. 	at java.lang.Thread.run(Thread.java:748)
    2489. 

  2489. 09:57:57.522 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2490. 

  2490. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2491. 

  2491. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2492. 

  2492. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2493. 

  2493. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2494. 

  2494. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2495. 

  2495. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2496. 

  2496. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2497. 

  2497. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2498. 

  2498. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2499. 

  2499. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2500. 

  2500. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2501. 

  2501. 	at java.lang.Thread.run(Thread.java:748)
    2502. 

  2502. 09:58:02.527 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2503. 

  2503. 09:58:02.528 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2504. 

  2504. java.net.ConnectException: Connection refused (Connection refused)
    2505. 

  2505. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2506. 

  2506. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2507. 

  2507. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2508. 

  2508. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2509. 

  2509. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2510. 

  2510. 	at java.net.Socket.connect(Socket.java:589)
    2511. 

  2511. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2512. 

  2512. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2513. 

  2513. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2514. 

  2514. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2515. 

  2515. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2516. 

  2516. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2517. 

  2517. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2518. 

  2518. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2519. 

  2519. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2520. 

  2520. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2521. 

  2521. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2522. 

  2522. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2523. 

  2523. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2524. 

  2524. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2525. 

  2525. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2526. 

  2526. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2527. 

  2527. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2528. 

  2528. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2529. 

  2529. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2530. 

  2530. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2531. 

  2531. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2532. 

  2532. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2533. 

  2533. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2534. 

  2534. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2535. 

  2535. 	at java.lang.Thread.run(Thread.java:748)
    2536. 

  2536. 09:58:02.528 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2537. 

  2537. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2538. 

  2538. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2539. 

  2539. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2540. 

  2540. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2541. 

  2541. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2542. 

  2542. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2543. 

  2543. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2544. 

  2544. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2545. 

  2545. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2546. 

  2546. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2547. 

  2547. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2548. 

  2548. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2549. 

  2549. 	at java.lang.Thread.run(Thread.java:748)
    2550. 

  2550. 09:58:02.528 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2551. 

  2551. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2552. 

  2552. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2553. 

  2553. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2554. 

  2554. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2555. 

  2555. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2556. 

  2556. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2557. 

  2557. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2558. 

  2558. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2559. 

  2559. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2560. 

  2560. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2561. 

  2561. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2562. 

  2562. 	at java.lang.Thread.run(Thread.java:748)
    2563. 

  2563. 09:58:07.533 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2564. 

  2564. 09:58:07.534 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2565. 

  2565. java.net.ConnectException: Connection refused (Connection refused)
    2566. 

  2566. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2567. 

  2567. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2568. 

  2568. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2569. 

  2569. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2570. 

  2570. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2571. 

  2571. 	at java.net.Socket.connect(Socket.java:589)
    2572. 

  2572. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2573. 

  2573. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2574. 

  2574. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2575. 

  2575. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2576. 

  2576. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2577. 

  2577. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2578. 

  2578. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2579. 

  2579. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2580. 

  2580. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2581. 

  2581. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2582. 

  2582. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2583. 

  2583. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2584. 

  2584. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2585. 

  2585. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2586. 

  2586. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2587. 

  2587. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2588. 

  2588. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2589. 

  2589. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2590. 

  2590. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2591. 

  2591. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2592. 

  2592. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2593. 

  2593. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2594. 

  2594. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2595. 

  2595. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2596. 

  2596. 	at java.lang.Thread.run(Thread.java:748)
    2597. 

  2597. 09:58:07.534 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2598. 

  2598. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2599. 

  2599. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2600. 

  2600. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2601. 

  2601. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2602. 

  2602. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2603. 

  2603. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2604. 

  2604. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2605. 

  2605. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2606. 

  2606. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2607. 

  2607. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2608. 

  2608. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2609. 

  2609. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2610. 

  2610. 	at java.lang.Thread.run(Thread.java:748)
    2611. 

  2611. 09:58:07.534 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2612. 

  2612. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2613. 

  2613. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2614. 

  2614. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2615. 

  2615. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2616. 

  2616. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2617. 

  2617. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2618. 

  2618. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2619. 

  2619. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2620. 

  2620. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2621. 

  2621. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2622. 

  2622. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2623. 

  2623. 	at java.lang.Thread.run(Thread.java:748)
    2624. 

  2624. 09:58:12.540 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2625. 

  2625. 09:58:12.541 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2626. 

  2626. java.net.ConnectException: Connection refused (Connection refused)
    2627. 

  2627. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2628. 

  2628. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2629. 

  2629. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2630. 

  2630. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2631. 

  2631. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2632. 

  2632. 	at java.net.Socket.connect(Socket.java:589)
    2633. 

  2633. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2634. 

  2634. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2635. 

  2635. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2636. 

  2636. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2637. 

  2637. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2638. 

  2638. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2639. 

  2639. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2640. 

  2640. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2641. 

  2641. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2642. 

  2642. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2643. 

  2643. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2644. 

  2644. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2645. 

  2645. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2646. 

  2646. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2647. 

  2647. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2648. 

  2648. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2649. 

  2649. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2650. 

  2650. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2651. 

  2651. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2652. 

  2652. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2653. 

  2653. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2654. 

  2654. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2655. 

  2655. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2656. 

  2656. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2657. 

  2657. 	at java.lang.Thread.run(Thread.java:748)
    2658. 

  2658. 09:58:12.542 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2659. 

  2659. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2660. 

  2660. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2661. 

  2661. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2662. 

  2662. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2663. 

  2663. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2664. 

  2664. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2665. 

  2665. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2666. 

  2666. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2667. 

  2667. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2668. 

  2668. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2669. 

  2669. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2670. 

  2670. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2671. 

  2671. 	at java.lang.Thread.run(Thread.java:748)
    2672. 

  2672. 09:58:12.542 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2673. 

  2673. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2674. 

  2674. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2675. 

  2675. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2676. 

  2676. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2677. 

  2677. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2678. 

  2678. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2679. 

  2679. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2680. 

  2680. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2681. 

  2681. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2682. 

  2682. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2683. 

  2683. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2684. 

  2684. 	at java.lang.Thread.run(Thread.java:748)
    2685. 

  2685. 09:58:17.550 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2686. 

  2686. 09:58:17.550 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2687. 

  2687. java.net.ConnectException: Connection refused (Connection refused)
    2688. 

  2688. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2689. 

  2689. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2690. 

  2690. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2691. 

  2691. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2692. 

  2692. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2693. 

  2693. 	at java.net.Socket.connect(Socket.java:589)
    2694. 

  2694. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2695. 

  2695. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2696. 

  2696. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2697. 

  2697. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2698. 

  2698. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2699. 

  2699. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2700. 

  2700. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2701. 

  2701. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2702. 

  2702. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2703. 

  2703. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2704. 

  2704. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2705. 

  2705. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2706. 

  2706. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2707. 

  2707. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2708. 

  2708. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2709. 

  2709. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2710. 

  2710. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2711. 

  2711. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2712. 

  2712. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2713. 

  2713. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2714. 

  2714. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2715. 

  2715. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2716. 

  2716. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2717. 

  2717. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2718. 

  2718. 	at java.lang.Thread.run(Thread.java:748)
    2719. 

  2719. 09:58:17.551 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2720. 

  2720. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2721. 

  2721. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2722. 

  2722. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2723. 

  2723. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2724. 

  2724. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2725. 

  2725. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2726. 

  2726. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2727. 

  2727. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2728. 

  2728. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2729. 

  2729. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2730. 

  2730. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2731. 

  2731. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2732. 

  2732. 	at java.lang.Thread.run(Thread.java:748)
    2733. 

  2733. 09:58:17.551 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2734. 

  2734. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2735. 

  2735. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2736. 

  2736. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2737. 

  2737. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2738. 

  2738. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2739. 

  2739. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2740. 

  2740. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2741. 

  2741. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2742. 

  2742. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2743. 

  2743. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2744. 

  2744. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2745. 

  2745. 	at java.lang.Thread.run(Thread.java:748)
    2746. 

  2746. 09:58:22.553 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2747. 

  2747. 09:58:22.553 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2748. 

  2748. java.net.ConnectException: Connection refused (Connection refused)
    2749. 

  2749. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2750. 

  2750. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2751. 

  2751. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2752. 

  2752. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2753. 

  2753. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2754. 

  2754. 	at java.net.Socket.connect(Socket.java:589)
    2755. 

  2755. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2756. 

  2756. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2757. 

  2757. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2758. 

  2758. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2759. 

  2759. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2760. 

  2760. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2761. 

  2761. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2762. 

  2762. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2763. 

  2763. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2764. 

  2764. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2765. 

  2765. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2766. 

  2766. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2767. 

  2767. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2768. 

  2768. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2769. 

  2769. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2770. 

  2770. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2771. 

  2771. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2772. 

  2772. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2773. 

  2773. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2774. 

  2774. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2775. 

  2775. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2776. 

  2776. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2777. 

  2777. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2778. 

  2778. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2779. 

  2779. 	at java.lang.Thread.run(Thread.java:748)
    2780. 

  2780. 09:58:22.553 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2781. 

  2781. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2782. 

  2782. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2783. 

  2783. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2784. 

  2784. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2785. 

  2785. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2786. 

  2786. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2787. 

  2787. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2788. 

  2788. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2789. 

  2789. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2790. 

  2790. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2791. 

  2791. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2792. 

  2792. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2793. 

  2793. 	at java.lang.Thread.run(Thread.java:748)
    2794. 

  2794. 09:58:22.553 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2795. 

  2795. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2796. 

  2796. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2797. 

  2797. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2798. 

  2798. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2799. 

  2799. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2800. 

  2800. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2801. 

  2801. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2802. 

  2802. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2803. 

  2803. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2804. 

  2804. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2805. 

  2805. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2806. 

  2806. 	at java.lang.Thread.run(Thread.java:748)
    2807. 

  2807. 09:58:27.557 [com.alibaba.nacos.naming.beat.sender] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance/beat?beat=%7B%22cluster%22%3A%22DEFAULT%22%2C%22ip%22%3A%22172.16.100.98%22%2C%22metadata%22%3A%7B%22preserved.register.source%22%3A%22SPRING_CLOUD%22%7D%2C%22period%22%3A5000%2C%22port%22%3A8090%2C%22scheduled%22%3Afalse%2C%22serviceName%22%3A%22DEFAULT_GROUP%40%40mooctest-crowdsource-backend%22%2C%22stopped%22%3Afalse%2C%22weight%22%3A1.0%7D&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8&namespaceId=public from 127.0.0.1 
    2808. 

  2808. 09:58:27.558 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2809. 

  2809. java.net.ConnectException: Connection refused (Connection refused)
    2810. 

  2810. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2811. 

  2811. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2812. 

  2812. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2813. 

  2813. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2814. 

  2814. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2815. 

  2815. 	at java.net.Socket.connect(Socket.java:589)
    2816. 

  2816. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2817. 

  2817. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2818. 

  2818. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2819. 

  2819. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2820. 

  2820. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2821. 

  2821. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2822. 

  2822. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2823. 

  2823. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2824. 

  2824. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2825. 

  2825. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2826. 

  2826. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334)
    2827. 

  2827. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309)
    2828. 

  2828. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    2829. 

  2829. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2830. 

  2830. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2831. 

  2831. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2832. 

  2832. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2833. 

  2833. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2834. 

  2834. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2835. 

  2835. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2836. 

  2836. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2837. 

  2837. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2838. 

  2838. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2839. 

  2839. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2840. 

  2840. 	at java.lang.Thread.run(Thread.java:748)
    2841. 

  2841. 09:58:27.559 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2842. 

  2842. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2843. 

  2843. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2844. 

  2844. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2845. 

  2845. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2846. 

  2846. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2847. 

  2847. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2848. 

  2848. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2849. 

  2849. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2850. 

  2850. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2851. 

  2851. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2852. 

  2852. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2853. 

  2853. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2854. 

  2854. 	at java.lang.Thread.run(Thread.java:748)
    2855. 

  2855. 09:58:27.559 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"172.16.100.98","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    2856. 

  2856. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2857. 

  2857. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2858. 

  2858. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2859. 

  2859. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    2860. 

  2860. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    2861. 

  2861. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    2862. 

  2862. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    2863. 

  2863. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    2864. 

  2864. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    2865. 

  2865. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    2866. 

  2866. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    2867. 

  2867. 	at java.lang.Thread.run(Thread.java:748)
    2868. 

  2868. 09:58:31.226 [Thread-40] INFO  c.a.c.n.r.NacosServiceRegistry - De-registering from Nacos Server now... 
    2869. 

  2869. 09:58:31.226 [Thread-40] INFO  com.alibaba.nacos.client.naming - [BEAT] removing beat: DEFAULT_GROUP@@mooctest-crowdsource-backend:172.16.100.98:8090 from beat map. 
    2870. 

  2870. 09:58:31.226 [Thread-40] INFO  com.alibaba.nacos.client.naming - [DEREGISTER-SERVICE] public deregistering service DEFAULT_GROUP@@mooctest-crowdsource-backend with instance: {"clusterName":"DEFAULT","enabled":true,"ephemeral":true,"healthy":true,"instanceHeartBeatInterval":5000,"instanceHeartBeatTimeOut":15000,"ip":"172.16.100.98","ipDeleteTimeout":30000,"metadata":{},"port":8090,"weight":1.0} 
    2871. 

  2871. 09:58:31.227 [Thread-40] WARN  com.alibaba.nacos.client.naming - failed to request http://127.0.0.1:8848/nacos/v1/ns/instance?namespaceId=public&port=8090&clusterName=DEFAULT&ip=172.16.100.98&ephemeral=true&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8 from 127.0.0.1 
    2872. 

  2872. 09:58:31.227 [Thread-40] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    2873. 

  2873. java.net.ConnectException: Connection refused (Connection refused)
    2874. 

  2874. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    2875. 

  2875. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    2876. 

  2876. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    2877. 

  2877. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    2878. 

  2878. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    2879. 

  2879. 	at java.net.Socket.connect(Socket.java:589)
    2880. 

  2880. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    2881. 

  2881. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    2882. 

  2882. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    2883. 

  2883. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    2884. 

  2884. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    2885. 

  2885. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    2886. 

  2886. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    2887. 

  2887. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    2888. 

  2888. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    2889. 

  2889. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    2890. 

  2890. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:89)
    2891. 

  2891. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    2892. 

  2892. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2893. 

  2893. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2894. 

  2894. 	at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:205)
    2895. 

  2895. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:244)
    2896. 

  2896. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:231)
    2897. 

  2897. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:221)
    2898. 

  2898. 	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:85)
    2899. 

  2899. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    2900. 

  2900. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    2901. 

  2901. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    2902. 

  2902. 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2903. 

  2903. 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    2904. 

  2904. 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    2905. 

  2905. 	at java.lang.reflect.Method.invoke(Method.java:498)
    2906. 

  2906. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
    2907. 

  2907. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:321)
    2908. 

  2908. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:156)
    2909. 

  2909. 	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:240)
    2910. 

  2910. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:571)
    2911. 

  2911. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:543)
    2912. 

  2912. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1055)
    2913. 

  2913. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:504)
    2914. 

  2914. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1062)
    2915. 

  2915. 	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1057)
    2916. 

  2916. 	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1026)
    2917. 

  2917. 	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:945)
    2918. 

  2918. 09:58:31.227 [Thread-40] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    2919. 

  2919. com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2920. 

  2920. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    2921. 

  2921. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    2922. 

  2922. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2923. 

  2923. 	at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:205)
    2924. 

  2924. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:244)
    2925. 

  2925. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:231)
    2926. 

  2926. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:221)
    2927. 

  2927. 	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:85)
    2928. 

  2928. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    2929. 

  2929. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    2930. 

  2930. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    2931. 

  2931. 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2932. 

  2932. 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    2933. 

  2933. 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    2934. 

  2934. 	at java.lang.reflect.Method.invoke(Method.java:498)
    2935. 

  2935. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
    2936. 

  2936. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:321)
    2937. 

  2937. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:156)
    2938. 

  2938. 	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:240)
    2939. 

  2939. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:571)
    2940. 

  2940. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:543)
    2941. 

  2941. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1055)
    2942. 

  2942. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:504)
    2943. 

  2943. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1062)
    2944. 

  2944. 	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1057)
    2945. 

  2945. 	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1026)
    2946. 

  2946. 	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:945)
    2947. 

  2947. 09:58:31.227 [Thread-40] ERROR c.a.c.n.r.NacosServiceRegistry - ERR_NACOS_DEREGISTER, de-register failed...NacosRegistration{nacosDiscoveryProperties=NacosDiscoveryProperties{serverAddr='127.0.0.1:8848', endpoint='', namespace='', watchDelay=30000, logName='', service='mooctest-crowdsource-backend', weight=1.0, clusterName='DEFAULT', namingLoadCacheAtStart='false', metadata={preserved.register.source=SPRING_CLOUD}, registerEnabled=true, ip='172.16.100.98', networkInterface='', port=8090, secure=false, accessKey='', secretKey=''}}, 
    2948. 

  2948. java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
    2949. 

  2949. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    2950. 

  2950. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    2951. 

  2951. 	at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:205)
    2952. 

  2952. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:244)
    2953. 

  2953. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:231)
    2954. 

  2954. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:221)
    2955. 

  2955. 	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:85)
    2956. 

  2956. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    2957. 

  2957. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    2958. 

  2958. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    2959. 

  2959. 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2960. 

  2960. 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    2961. 

  2961. 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    2962. 

  2962. 	at java.lang.reflect.Method.invoke(Method.java:498)
    2963. 

  2963. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
    2964. 

  2964. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:321)
    2965. 

  2965. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:156)
    2966. 

  2966. 	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:240)
    2967. 

  2967. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:571)
    2968. 

  2968. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:543)
    2969. 

  2969. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1055)
    2970. 

  2970. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:504)
    2971. 

  2971. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1062)
    2972. 

  2972. 	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1057)
    2973. 

  2973. 	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1026)
    2974. 

  2974. 	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:945)
    2975. 

  2975. 09:58:31.227 [Thread-40] INFO  c.a.c.n.r.NacosServiceRegistry - De-registration finished. 
    2976. 

  2976. 09:58:31.228 [Thread-40] INFO  o.s.s.c.ThreadPoolTaskExecutor - Shutting down ExecutorService 'applicationTaskExecutor' 
    2977. 

  2977. 09:58:31.236 [Thread-40] INFO  org.mongodb.driver.connection - Closed connection [connectionId{localValue:2, serverValue:38}] to localhost:27017 because the pool has been closed. 
    2978. 

  2978. 09:58:39.114 [main] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$bbf59cc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    2979. 

  2979. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:zookeeper.version=3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60, built on 04/03/2017 16:19 GMT 
    2980. 

  2980. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:host.name=172.16.100.98 
    2981. 

  2981. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.version=1.8.0_181 
    2982. 

  2982. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.vendor=Oracle Corporation 
    2983. 

  2983. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre 
    2984. 

  2984. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.class.path=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/tools.jar:/Users/guochao/Desktop/project/crowdsource-backend/target/classes:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-web/2.1.4.RELEASE/spring-boot-starter-web-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter/2.1.4.RELEASE/spring-boot-starter-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot/2.1.4.RELEASE/spring-boot-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.1.4.RELEASE/spring-boot-autoconfigure-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-logging/2.1.4.RELEASE/spring-boot-starter-logging-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar:/Users/guochao/.m2/repository/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar:/Users/guochao/.m2/repository/org/apache/logging/log4j/log4j-to-slf4j/2.11.2/log4j-to-slf4j-2.11.2.jar:/Users/guochao/.m2/repository/org/apache/logging/log4j/log4j-api/2.11.2/log4j-api-2.11.2.jar:/Users/guochao/.m2/repository/org/slf4j/jul-to-slf4j/1.7.26/jul-to-slf4j-1.7.26.jar:/Users/guochao/.m2/repository/javax/annotation/javax.annotation-api/1.3.2/javax.annotation-api-1.3.2.jar:/Users/guochao/.m2/repository/org/yaml/snakeyaml/1.23/snakeyaml-1.23.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-json/2.1.4.RELEASE/spring-boot-starter-json-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.9.8/jackson-databind-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.9.0/jackson-annotations-2.9.0.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.9.8/jackson-core-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.9.8/jackson-datatype-jdk8-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.9.8/jackson-datatype-jsr310-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.9.8/jackson-module-parameter-names-2.9.8.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/2.1.4.RELEASE/spring-boot-starter-tomcat-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar:/Users/guochao/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/9.0.17/tomcat-embed-el-9.0.17.jar:/Users/guochao/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/9.0.17/tomcat-embed-websocket-9.0.17.jar:/Users/guochao/.m2/repository/org/hibernate/validator/hibernate-validator/6.0.16.Final/hibernate-validator-6.0.16.Final.jar:/Users/guochao/.m2/repository/javax/validation/validation-api/2.0.1.Final/validation-api-2.0.1.Final.jar:/Users/guochao/.m2/repository/org/jboss/logging/jboss-logging/3.3.2.Final/jboss-logging-3.3.2.Final.jar:/Users/guochao/.m2/repository/com/fasterxml/classmate/1.4.0/classmate-1.4.0.jar:/Users/guochao/.m2/repository/org/springframework/spring-web/5.1.6.RELEASE/spring-web-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-beans/5.1.6.RELEASE/spring-beans-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-webmvc/5.1.6.RELEASE/spring-webmvc-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-context/5.1.6.RELEASE/spring-context-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-expression/5.1.6.RELEASE/spring-expression-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/session/spring-session-core/2.1.5.RELEASE/spring-session-core-2.1.5.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-jcl/5.1.6.RELEASE/spring-jcl-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/slf4j/slf4j-api/1.7.26/slf4j-api-1.7.26.jar:/Users/guochao/.m2/repository/org/springframework/spring-core/5.1.6.RELEASE/spring-core-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/com/google/code/gson/gson/2.8.2/gson-2.8.2.jar:/Users/guochao/.m2/repository/org/json/json/20160810/json-20160810.jar:/Users/guochao/.m2/repository/org/apache/poi/poi/3.17/poi-3.17.jar:/Users/guochao/.m2/repository/commons-codec/commons-codec/1.11/commons-codec-1.11.jar:/Users/guochao/.m2/repository/org/apache/commons/commons-collections4/4.1/commons-collections4-4.1.jar:/Users/guochao/.m2/repository/org/apache/poi/poi-ooxml/3.17/poi-ooxml-3.17.jar:/Users/guochao/.m2/repository/org/apache/poi/poi-ooxml-schemas/3.17/poi-ooxml-schemas-3.17.jar:/Users/guochao/.m2/repository/org/apache/xmlbeans/xmlbeans/2.6.0/xmlbeans-2.6.0.jar:/Users/guochao/.m2/repository/com/github/virtuald/curvesapi/1.04/curvesapi-1.04.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-data-mongodb/2.1.4.RELEASE/spring-boot-starter-data-mongodb-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/mongodb/mongodb-driver/3.8.2/mongodb-driver-3.8.2.jar:/Users/guochao/.m2/repository/org/mongodb/bson/3.8.2/bson-3.8.2.jar:/Users/guochao/.m2/repository/org/mongodb/mongodb-driver-core/3.8.2/mongodb-driver-core-3.8.2.jar:/Users/guochao/.m2/repository/org/springframework/data/spring-data-mongodb/2.1.6.RELEASE/spring-data-mongodb-2.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-tx/5.1.6.RELEASE/spring-tx-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/data/spring-data-commons/2.1.6.RELEASE/spring-data-commons-2.1.6.RELEASE.jar:/Users/guochao/.m2/repository/commons-fileupload/commons-fileupload/1.2.1/commons-fileupload-1.2.1.jar:/Users/guochao/.m2/repository/org/ansj/ansj_seg/5.1.1/ansj_seg-5.1.1.jar:/Users/guochao/.m2/repository/org/nlpcn/nlp-lang/1.7.2/nlp-lang-1.7.2.jar:/Users/guochao/.m2/repository/com/hankcs/hanlp/portable-1.7.0/hanlp-portable-1.7.0.jar:/Users/guochao/.m2/repository/org/projectlombok/lombok/1.18.8/lombok-1.18.8.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-zookeeper-config/2.1.2.RELEASE/spring-cloud-starter-zookeeper-config-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-zookeeper/2.1.2.RELEASE/spring-cloud-starter-zookeeper-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-commons/2.1.2.RELEASE/spring-cloud-commons-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-zookeeper-core/2.1.2.RELEASE/spring-cloud-zookeeper-core-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-zookeeper-config/2.1.2.RELEASE/spring-cloud-zookeeper-config-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/apache/curator/curator-recipes/4.0.1/curator-recipes-4.0.1.jar:/Users/guochao/.m2/repository/org/apache/curator/curator-framework/4.0.1/curator-framework-4.0.1.jar:/Users/guochao/.m2/repository/org/apache/curator/curator-client/4.0.1/curator-client-4.0.1.jar:/Users/guochao/.m2/repository/org/apache/zookeeper/zookeeper/3.5.3-beta/zookeeper-3.5.3-beta.jar:/Users/guochao/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-context/2.1.2.RELEASE/spring-cloud-context-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/security/spring-security-crypto/5.1.5.RELEASE/spring-security-crypto-5.1.5.RELEASE.jar:/Users/guochao/.m2/repository/com/alibaba/cloud/spring-cloud-starter-alibaba-nacos-discovery/2.1.0.RELEASE/spring-cloud-starter-alibaba-nacos-discovery-2.1.0.RELEASE.jar:/Users/guochao/.m2/repository/com/alibaba/cloud/spring-cloud-alibaba-nacos-discovery/2.1.0.RELEASE/spring-cloud-alibaba-nacos-discovery-2.1.0.RELEASE.jar:/Users/guochao/.m2/repository/com/alibaba/nacos/nacos-client/1.1.1/nacos-client-1.1.1.jar:/Users/guochao/.m2/repository/com/alibaba/nacos/nacos-common/1.1.1/nacos-common-1.1.1.jar:/Users/guochao/.m2/repository/commons-io/commons-io/2.2/commons-io-2.2.jar:/Users/guochao/.m2/repository/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar:/Users/guochao/.m2/repository/com/alibaba/nacos/nacos-api/1.1.1/nacos-api-1.1.1.jar:/Users/guochao/.m2/repository/io/prometheus/simpleclient/0.5.0/simpleclient-0.5.0.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-netflix-ribbon/2.1.2.RELEASE/spring-cloud-starter-netflix-ribbon-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter/2.1.2.RELEASE/spring-cloud-starter-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/security/spring-security-rsa/1.0.7.RELEASE/spring-security-rsa-1.0.7.RELEASE.jar:/Users/guochao/.m2/repository/org/bouncycastle/bcpkix-jdk15on/1.60/bcpkix-jdk15on-1.60.jar:/Users/guochao/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.60/bcprov-jdk15on-1.60.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-netflix-ribbon/2.1.2.RELEASE/spring-cloud-netflix-ribbon-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-netflix-archaius/2.1.2.RELEASE/spring-cloud-netflix-archaius-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-netflix-archaius/2.1.2.RELEASE/spring-cloud-starter-netflix-archaius-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/com/netflix/archaius/archaius-core/0.7.6/archaius-core-0.7.6.jar:/Users/guochao/.m2/repository/commons-configuration/commons-configuration/1.8/commons-configuration-1.8.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon/2.3.0/ribbon-2.3.0.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-transport/2.3.0/ribbon-transport-2.3.0.jar:/Users/guochao/.m2/repository/io/reactivex/rxnetty-contexts/0.4.9/rxnetty-contexts-0.4.9.jar:/Users/guochao/.m2/repository/io/reactivex/rxnetty-servo/0.4.9/rxnetty-servo-0.4.9.jar:/Users/guochao/.m2/repository/com/netflix/hystrix/hystrix-core/1.5.18/hystrix-core-1.5.18.jar:/Users/guochao/.m2/repository/org/hdrhistogram/HdrHistogram/2.1.9/HdrHistogram-2.1.9.jar:/Users/guochao/.m2/repository/javax/inject/javax.inject/1/javax.inject-1.jar:/Users/guochao/.m2/repository/io/reactivex/rxnetty/0.4.9/rxnetty-0.4.9.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-core/2.3.0/ribbon-core-2.3.0.jar:/Users/guochao/.m2/repository/commons-lang/commons-lang/2.6/commons-lang-2.6.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-httpclient/2.3.0/ribbon-httpclient-2.3.0.jar:/Users/guochao/.m2/repository/commons-collections/commons-collections/3.2.2/commons-collections-3.2.2.jar:/Users/guochao/.m2/repository/com/sun/jersey/jersey-client/1.19.1/jersey-client-1.19.1.jar:/Users/guochao/.m2/repository/com/sun/jersey/jersey-core/1.19.1/jersey-core-1.19.1.jar:/Users/guochao/.m2/repository/javax/ws/rs/jsr311-api/1.1.1/jsr311-api-1.1.1.jar:/Users/guochao/.m2/repository/com/sun/jersey/contribs/jersey-apache-client4/1.19.1/jersey-apache-client4-1.19.1.jar:/Users/guochao/.m2/repository/com/netflix/servo/servo-core/0.12.21/servo-core-0.12.21.jar:/Users/guochao/.m2/repository/com/netflix/netflix-commons/netflix-commons-util/0.3.0/netflix-commons-util-0.3.0.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-loadbalancer/2.3.0/ribbon-loadbalancer-2.3.0.jar:/Users/guochao/.m2/repository/com/netflix/netflix-commons/netflix-statistics/0.1.1/netflix-statistics-0.1.1.jar:/Users/guochao/.m2/repository/io/reactivex/rxjava/1.3.8/rxjava-1.3.8.jar:/Users/guochao/.m2/repository/com/aliyun/oss/aliyun-sdk-oss/3.8.0/aliyun-sdk-oss-3.8.0.jar:/Users/guochao/.m2/repository/org/apache/httpcomponents/httpclient/4.5.8/httpclient-4.5.8.jar:/Users/guochao/.m2/repository/org/apache/httpcomponents/httpcore/4.4.11/httpcore-4.4.11.jar:/Users/guochao/.m2/repository/org/jdom/jdom/1.1/jdom-1.1.jar:/Users/guochao/.m2/repository/org/codehaus/jettison/jettison/1.1/jettison-1.1.jar:/Users/guochao/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-core/3.4.0/aliyun-java-sdk-core-3.4.0.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-ram/3.0.0/aliyun-java-sdk-ram-3.0.0.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-sts/3.0.0/aliyun-java-sdk-sts-3.0.0.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-ecs/4.2.0/aliyun-java-sdk-ecs-4.2.0.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-aop/2.1.4.RELEASE/spring-boot-starter-aop-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-aop/5.1.6.RELEASE/spring-aop-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/aspectj/aspectjweaver/1.9.2/aspectjweaver-1.9.2.jar:/Users/guochao/.m2/repository/com/google/guava/guava/25.0-jre/guava-25.0-jre.jar:/Users/guochao/.m2/repository/com/google/code/findbugs/jsr305/1.3.9/jsr305-1.3.9.jar:/Users/guochao/.m2/repository/org/checkerframework/checker-compat-qual/2.0.0/checker-compat-qual-2.0.0.jar:/Users/guochao/.m2/repository/com/google/errorprone/error_prone_annotations/2.1.3/error_prone_annotations-2.1.3.jar:/Users/guochao/.m2/repository/com/google/j2objc/j2objc-annotations/1.1/j2objc-annotations-1.1.jar:/Users/guochao/.m2/repository/org/codehaus/mojo/animal-sniffer-annotations/1.14/animal-sniffer-annotations-1.14.jar:/Users/guochao/.m2/repository/io/github/yedaxia/japidocs/1.4.4/japidocs-1.4.4.jar:/Users/guochao/.m2/repository/com/alibaba/fastjson/1.2.70/fastjson-1.2.70.jar:/Users/guochao/.m2/repository/com/github/javaparser/javaparser-core/3.6.16/javaparser-core-3.6.16.jar:/Users/guochao/.m2/repository/org/freemarker/freemarker/2.3.28/freemarker-2.3.28.jar:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar 
    2985. 

  2985. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.library.path=/Users/guochao/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:. 
    2986. 

  2986. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.io.tmpdir=/var/folders/z7/lr15ch9n11jbc7g7ktktl8nw0000gn/T/ 
    2987. 

  2987. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.compiler=<NA> 
    2988. 

  2988. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.name=Mac OS X 
    2989. 

  2989. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.arch=x86_64 
    2990. 

  2990. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.version=10.14.6 
    2991. 

  2991. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.name=guochao 
    2992. 

  2992. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.home=/Users/guochao 
    2993. 

  2993. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.dir=/Users/guochao/Desktop/project/crowdsource-backend 
    2994. 

  2994. 09:58:39.212 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.free=169MB 
    2995. 

  2995. 09:58:39.213 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.max=3641MB 
    2996. 

  2996. 09:58:39.213 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.total=344MB 
    2997. 

  2997. 09:58:39.223 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    2998. 

  2998. 09:58:39.225 [main] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@47d7bfb3 
    2999. 

  2999. 09:58:39.232 [main] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    3000. 

  3000. 09:58:39.237 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    3001. 

  3001. 09:58:39.289 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    3002. 

  3002. 09:58:39.698 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:56989, server: 101.37.175.111/101.37.175.111:2181 
    3003. 

  3003. 09:58:40.022 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd78c, negotiated timeout = 40000 
    3004. 

  3004. 09:58:40.027 [main-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    3005. 

  3005. 09:58:57.944 [main] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
    3006. 

  3006. 09:58:57.980 [main] INFO  edu.nju.BugApplication - The following profiles are active: dev 
    3007. 

  3007. 09:58:58.488 [main] INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Bootstrapping Spring Data repositories in DEFAULT mode. 
    3008. 

  3008. 09:58:58.513 [main] INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Finished Spring Data repository scanning in 21ms. Found 0 repository interfaces. 
    3009. 

  3009. 09:58:58.663 [main] INFO  o.s.c.context.scope.GenericScope - BeanFactory id=b2306abe-4109-3c0b-bf9b-f4447f91967a 
    3010. 

  3010. 09:58:58.810 [main] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$bbf59cc1] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    3011. 

  3011. 09:58:59.092 [main] INFO  o.s.b.w.e.tomcat.TomcatWebServer - Tomcat initialized with port(s): 8090 (http) 
    3012. 

  3012. 09:58:59.118 [main] INFO  o.a.catalina.core.StandardService - Starting service [Tomcat] 
    3013. 

  3013. 09:58:59.118 [main] INFO  o.a.catalina.core.StandardEngine - Starting Servlet engine: [Apache Tomcat/9.0.17] 
    3014. 

  3014. 09:58:59.213 [main] INFO  o.a.c.c.C.[.[localhost].[/Bug/api] - Initializing Spring embedded WebApplicationContext 
    3015. 

  3015. 09:58:59.214 [main] INFO  o.s.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 1220 ms 
    3016. 

  3016. 09:58:59.504 [main] INFO  org.mongodb.driver.cluster - Cluster created with settings {hosts=[localhost:27017], mode=SINGLE, requiredClusterType=UNKNOWN, serverSelectionTimeout='30000 ms', maxWaitQueueSize=500} 
    3017. 

  3017. 09:58:59.545 [cluster-ClusterId{value='60989363ac945de6f12da7f5', description='null'}-localhost:27017] INFO  org.mongodb.driver.connection - Opened connection [connectionId{localValue:1, serverValue:40}] to localhost:27017 
    3018. 

  3018. 09:58:59.549 [cluster-ClusterId{value='60989363ac945de6f12da7f5', description='null'}-localhost:27017] INFO  org.mongodb.driver.cluster - Monitor thread successfully connected to server with description ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[4, 0, 11]}, minWireVersion=0, maxWireVersion=7, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=2320821} 
    3019. 

  3019. 09:58:59.785 [main] INFO  org.mongodb.driver.connection - Opened connection [connectionId{localValue:2, serverValue:41}] to localhost:27017 
    3020. 

  3020. 09:59:00.039 [main] WARN  c.n.c.s.URLConfigurationSource - No URLs will be polled as dynamic configuration sources. 
    3021. 

  3021. 09:59:00.039 [main] INFO  c.n.c.s.URLConfigurationSource - To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath. 
    3022. 

  3022. 09:59:00.042 [main] WARN  c.n.c.s.URLConfigurationSource - No URLs will be polled as dynamic configuration sources. 
    3023. 

  3023. 09:59:00.042 [main] INFO  c.n.c.s.URLConfigurationSource - To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath. 
    3024. 

  3024. 09:59:00.191 [main] INFO  o.s.s.c.ThreadPoolTaskExecutor - Initializing ExecutorService 'applicationTaskExecutor' 
    3025. 

  3025. 09:59:08.711 [main] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$b47f4cf2] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    3026. 

  3026. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:zookeeper.version=3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60, built on 04/03/2017 16:19 GMT 
    3027. 

  3027. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:host.name=172.16.100.98 
    3028. 

  3028. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.version=1.8.0_181 
    3029. 

  3029. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.vendor=Oracle Corporation 
    3030. 

  3030. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre 
    3031. 

  3031. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.class.path=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/lib/tools.jar:/Users/guochao/Desktop/project/crowdsource-backend/target/classes:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-web/2.1.4.RELEASE/spring-boot-starter-web-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter/2.1.4.RELEASE/spring-boot-starter-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot/2.1.4.RELEASE/spring-boot-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.1.4.RELEASE/spring-boot-autoconfigure-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-logging/2.1.4.RELEASE/spring-boot-starter-logging-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar:/Users/guochao/.m2/repository/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar:/Users/guochao/.m2/repository/org/apache/logging/log4j/log4j-to-slf4j/2.11.2/log4j-to-slf4j-2.11.2.jar:/Users/guochao/.m2/repository/org/apache/logging/log4j/log4j-api/2.11.2/log4j-api-2.11.2.jar:/Users/guochao/.m2/repository/org/slf4j/jul-to-slf4j/1.7.26/jul-to-slf4j-1.7.26.jar:/Users/guochao/.m2/repository/javax/annotation/javax.annotation-api/1.3.2/javax.annotation-api-1.3.2.jar:/Users/guochao/.m2/repository/org/yaml/snakeyaml/1.23/snakeyaml-1.23.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-json/2.1.4.RELEASE/spring-boot-starter-json-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.9.8/jackson-databind-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.9.0/jackson-annotations-2.9.0.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.9.8/jackson-core-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.9.8/jackson-datatype-jdk8-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.9.8/jackson-datatype-jsr310-2.9.8.jar:/Users/guochao/.m2/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.9.8/jackson-module-parameter-names-2.9.8.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/2.1.4.RELEASE/spring-boot-starter-tomcat-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar:/Users/guochao/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/9.0.17/tomcat-embed-el-9.0.17.jar:/Users/guochao/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/9.0.17/tomcat-embed-websocket-9.0.17.jar:/Users/guochao/.m2/repository/org/hibernate/validator/hibernate-validator/6.0.16.Final/hibernate-validator-6.0.16.Final.jar:/Users/guochao/.m2/repository/javax/validation/validation-api/2.0.1.Final/validation-api-2.0.1.Final.jar:/Users/guochao/.m2/repository/org/jboss/logging/jboss-logging/3.3.2.Final/jboss-logging-3.3.2.Final.jar:/Users/guochao/.m2/repository/com/fasterxml/classmate/1.4.0/classmate-1.4.0.jar:/Users/guochao/.m2/repository/org/springframework/spring-web/5.1.6.RELEASE/spring-web-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-beans/5.1.6.RELEASE/spring-beans-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-webmvc/5.1.6.RELEASE/spring-webmvc-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-context/5.1.6.RELEASE/spring-context-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-expression/5.1.6.RELEASE/spring-expression-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/session/spring-session-core/2.1.5.RELEASE/spring-session-core-2.1.5.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-jcl/5.1.6.RELEASE/spring-jcl-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/slf4j/slf4j-api/1.7.26/slf4j-api-1.7.26.jar:/Users/guochao/.m2/repository/org/springframework/spring-core/5.1.6.RELEASE/spring-core-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/com/google/code/gson/gson/2.8.2/gson-2.8.2.jar:/Users/guochao/.m2/repository/org/json/json/20160810/json-20160810.jar:/Users/guochao/.m2/repository/org/apache/poi/poi/3.17/poi-3.17.jar:/Users/guochao/.m2/repository/commons-codec/commons-codec/1.11/commons-codec-1.11.jar:/Users/guochao/.m2/repository/org/apache/commons/commons-collections4/4.1/commons-collections4-4.1.jar:/Users/guochao/.m2/repository/org/apache/poi/poi-ooxml/3.17/poi-ooxml-3.17.jar:/Users/guochao/.m2/repository/org/apache/poi/poi-ooxml-schemas/3.17/poi-ooxml-schemas-3.17.jar:/Users/guochao/.m2/repository/org/apache/xmlbeans/xmlbeans/2.6.0/xmlbeans-2.6.0.jar:/Users/guochao/.m2/repository/com/github/virtuald/curvesapi/1.04/curvesapi-1.04.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-data-mongodb/2.1.4.RELEASE/spring-boot-starter-data-mongodb-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/mongodb/mongodb-driver/3.8.2/mongodb-driver-3.8.2.jar:/Users/guochao/.m2/repository/org/mongodb/bson/3.8.2/bson-3.8.2.jar:/Users/guochao/.m2/repository/org/mongodb/mongodb-driver-core/3.8.2/mongodb-driver-core-3.8.2.jar:/Users/guochao/.m2/repository/org/springframework/data/spring-data-mongodb/2.1.6.RELEASE/spring-data-mongodb-2.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-tx/5.1.6.RELEASE/spring-tx-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/data/spring-data-commons/2.1.6.RELEASE/spring-data-commons-2.1.6.RELEASE.jar:/Users/guochao/.m2/repository/commons-fileupload/commons-fileupload/1.2.1/commons-fileupload-1.2.1.jar:/Users/guochao/.m2/repository/org/ansj/ansj_seg/5.1.1/ansj_seg-5.1.1.jar:/Users/guochao/.m2/repository/org/nlpcn/nlp-lang/1.7.2/nlp-lang-1.7.2.jar:/Users/guochao/.m2/repository/com/hankcs/hanlp/portable-1.7.0/hanlp-portable-1.7.0.jar:/Users/guochao/.m2/repository/org/projectlombok/lombok/1.18.8/lombok-1.18.8.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-zookeeper-config/2.1.2.RELEASE/spring-cloud-starter-zookeeper-config-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-zookeeper/2.1.2.RELEASE/spring-cloud-starter-zookeeper-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-commons/2.1.2.RELEASE/spring-cloud-commons-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-zookeeper-core/2.1.2.RELEASE/spring-cloud-zookeeper-core-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-zookeeper-config/2.1.2.RELEASE/spring-cloud-zookeeper-config-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/apache/curator/curator-recipes/4.0.1/curator-recipes-4.0.1.jar:/Users/guochao/.m2/repository/org/apache/curator/curator-framework/4.0.1/curator-framework-4.0.1.jar:/Users/guochao/.m2/repository/org/apache/curator/curator-client/4.0.1/curator-client-4.0.1.jar:/Users/guochao/.m2/repository/org/apache/zookeeper/zookeeper/3.5.3-beta/zookeeper-3.5.3-beta.jar:/Users/guochao/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-context/2.1.2.RELEASE/spring-cloud-context-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/security/spring-security-crypto/5.1.5.RELEASE/spring-security-crypto-5.1.5.RELEASE.jar:/Users/guochao/.m2/repository/com/alibaba/cloud/spring-cloud-starter-alibaba-nacos-discovery/2.1.0.RELEASE/spring-cloud-starter-alibaba-nacos-discovery-2.1.0.RELEASE.jar:/Users/guochao/.m2/repository/com/alibaba/cloud/spring-cloud-alibaba-nacos-discovery/2.1.0.RELEASE/spring-cloud-alibaba-nacos-discovery-2.1.0.RELEASE.jar:/Users/guochao/.m2/repository/com/alibaba/nacos/nacos-client/1.1.1/nacos-client-1.1.1.jar:/Users/guochao/.m2/repository/com/alibaba/nacos/nacos-common/1.1.1/nacos-common-1.1.1.jar:/Users/guochao/.m2/repository/commons-io/commons-io/2.2/commons-io-2.2.jar:/Users/guochao/.m2/repository/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar:/Users/guochao/.m2/repository/com/alibaba/nacos/nacos-api/1.1.1/nacos-api-1.1.1.jar:/Users/guochao/.m2/repository/io/prometheus/simpleclient/0.5.0/simpleclient-0.5.0.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-netflix-ribbon/2.1.2.RELEASE/spring-cloud-starter-netflix-ribbon-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter/2.1.2.RELEASE/spring-cloud-starter-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/security/spring-security-rsa/1.0.7.RELEASE/spring-security-rsa-1.0.7.RELEASE.jar:/Users/guochao/.m2/repository/org/bouncycastle/bcpkix-jdk15on/1.60/bcpkix-jdk15on-1.60.jar:/Users/guochao/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.60/bcprov-jdk15on-1.60.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-netflix-ribbon/2.1.2.RELEASE/spring-cloud-netflix-ribbon-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-netflix-archaius/2.1.2.RELEASE/spring-cloud-netflix-archaius-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/cloud/spring-cloud-starter-netflix-archaius/2.1.2.RELEASE/spring-cloud-starter-netflix-archaius-2.1.2.RELEASE.jar:/Users/guochao/.m2/repository/com/netflix/archaius/archaius-core/0.7.6/archaius-core-0.7.6.jar:/Users/guochao/.m2/repository/commons-configuration/commons-configuration/1.8/commons-configuration-1.8.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon/2.3.0/ribbon-2.3.0.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-transport/2.3.0/ribbon-transport-2.3.0.jar:/Users/guochao/.m2/repository/io/reactivex/rxnetty-contexts/0.4.9/rxnetty-contexts-0.4.9.jar:/Users/guochao/.m2/repository/io/reactivex/rxnetty-servo/0.4.9/rxnetty-servo-0.4.9.jar:/Users/guochao/.m2/repository/com/netflix/hystrix/hystrix-core/1.5.18/hystrix-core-1.5.18.jar:/Users/guochao/.m2/repository/org/hdrhistogram/HdrHistogram/2.1.9/HdrHistogram-2.1.9.jar:/Users/guochao/.m2/repository/javax/inject/javax.inject/1/javax.inject-1.jar:/Users/guochao/.m2/repository/io/reactivex/rxnetty/0.4.9/rxnetty-0.4.9.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-core/2.3.0/ribbon-core-2.3.0.jar:/Users/guochao/.m2/repository/commons-lang/commons-lang/2.6/commons-lang-2.6.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-httpclient/2.3.0/ribbon-httpclient-2.3.0.jar:/Users/guochao/.m2/repository/commons-collections/commons-collections/3.2.2/commons-collections-3.2.2.jar:/Users/guochao/.m2/repository/com/sun/jersey/jersey-client/1.19.1/jersey-client-1.19.1.jar:/Users/guochao/.m2/repository/com/sun/jersey/jersey-core/1.19.1/jersey-core-1.19.1.jar:/Users/guochao/.m2/repository/javax/ws/rs/jsr311-api/1.1.1/jsr311-api-1.1.1.jar:/Users/guochao/.m2/repository/com/sun/jersey/contribs/jersey-apache-client4/1.19.1/jersey-apache-client4-1.19.1.jar:/Users/guochao/.m2/repository/com/netflix/servo/servo-core/0.12.21/servo-core-0.12.21.jar:/Users/guochao/.m2/repository/com/netflix/netflix-commons/netflix-commons-util/0.3.0/netflix-commons-util-0.3.0.jar:/Users/guochao/.m2/repository/com/netflix/ribbon/ribbon-loadbalancer/2.3.0/ribbon-loadbalancer-2.3.0.jar:/Users/guochao/.m2/repository/com/netflix/netflix-commons/netflix-statistics/0.1.1/netflix-statistics-0.1.1.jar:/Users/guochao/.m2/repository/io/reactivex/rxjava/1.3.8/rxjava-1.3.8.jar:/Users/guochao/.m2/repository/com/aliyun/oss/aliyun-sdk-oss/3.8.0/aliyun-sdk-oss-3.8.0.jar:/Users/guochao/.m2/repository/org/apache/httpcomponents/httpclient/4.5.8/httpclient-4.5.8.jar:/Users/guochao/.m2/repository/org/apache/httpcomponents/httpcore/4.4.11/httpcore-4.4.11.jar:/Users/guochao/.m2/repository/org/jdom/jdom/1.1/jdom-1.1.jar:/Users/guochao/.m2/repository/org/codehaus/jettison/jettison/1.1/jettison-1.1.jar:/Users/guochao/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-core/3.4.0/aliyun-java-sdk-core-3.4.0.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-ram/3.0.0/aliyun-java-sdk-ram-3.0.0.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-sts/3.0.0/aliyun-java-sdk-sts-3.0.0.jar:/Users/guochao/.m2/repository/com/aliyun/aliyun-java-sdk-ecs/4.2.0/aliyun-java-sdk-ecs-4.2.0.jar:/Users/guochao/.m2/repository/org/springframework/boot/spring-boot-starter-aop/2.1.4.RELEASE/spring-boot-starter-aop-2.1.4.RELEASE.jar:/Users/guochao/.m2/repository/org/springframework/spring-aop/5.1.6.RELEASE/spring-aop-5.1.6.RELEASE.jar:/Users/guochao/.m2/repository/org/aspectj/aspectjweaver/1.9.2/aspectjweaver-1.9.2.jar:/Users/guochao/.m2/repository/com/google/guava/guava/25.0-jre/guava-25.0-jre.jar:/Users/guochao/.m2/repository/com/google/code/findbugs/jsr305/1.3.9/jsr305-1.3.9.jar:/Users/guochao/.m2/repository/org/checkerframework/checker-compat-qual/2.0.0/checker-compat-qual-2.0.0.jar:/Users/guochao/.m2/repository/com/google/errorprone/error_prone_annotations/2.1.3/error_prone_annotations-2.1.3.jar:/Users/guochao/.m2/repository/com/google/j2objc/j2objc-annotations/1.1/j2objc-annotations-1.1.jar:/Users/guochao/.m2/repository/org/codehaus/mojo/animal-sniffer-annotations/1.14/animal-sniffer-annotations-1.14.jar:/Users/guochao/.m2/repository/io/github/yedaxia/japidocs/1.4.4/japidocs-1.4.4.jar:/Users/guochao/.m2/repository/com/alibaba/fastjson/1.2.70/fastjson-1.2.70.jar:/Users/guochao/.m2/repository/com/github/javaparser/javaparser-core/3.6.16/javaparser-core-3.6.16.jar:/Users/guochao/.m2/repository/org/freemarker/freemarker/2.3.28/freemarker-2.3.28.jar:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar 
    3032. 

  3032. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.library.path=/Users/guochao/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:. 
    3033. 

  3033. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.io.tmpdir=/var/folders/z7/lr15ch9n11jbc7g7ktktl8nw0000gn/T/ 
    3034. 

  3034. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.compiler=<NA> 
    3035. 

  3035. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.name=Mac OS X 
    3036. 

  3036. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.arch=x86_64 
    3037. 

  3037. 09:59:08.828 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.version=10.14.6 
    3038. 

  3038. 09:59:08.829 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.name=guochao 
    3039. 

  3039. 09:59:08.829 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.home=/Users/guochao 
    3040. 

  3040. 09:59:08.829 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.dir=/Users/guochao/Desktop/project/crowdsource-backend 
    3041. 

  3041. 09:59:08.829 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.free=164MB 
    3042. 

  3042. 09:59:08.829 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.max=3641MB 
    3043. 

  3043. 09:59:08.829 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.total=338MB 
    3044. 

  3044. 09:59:08.838 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    3045. 

  3045. 09:59:08.840 [main] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@771db12c 
    3046. 

  3046. 09:59:08.847 [main] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    3047. 

  3047. 09:59:08.900 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 101.37.175.111/101.37.175.111:2181. Will not attempt to authenticate using SASL (unknown error) 
    3048. 

  3048. 09:59:08.905 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    3049. 

  3049. 09:59:09.321 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /172.16.100.98:57216, server: 101.37.175.111/101.37.175.111:2181 
    3050. 

  3050. 09:59:10.651 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 101.37.175.111/101.37.175.111:2181, sessionid = 0x17559ef9a3fd78d, negotiated timeout = 40000 
    3051. 

  3051. 09:59:10.656 [main-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    3052.