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crowdsource-backend.log.2020-11-02.log

crowdsource-backend.log.2020-11-02.log 166 KB
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  1. 10:36:16.540 [main] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    2. 

  2. 10:36:26.800 [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. 10:36:26.800 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:host.name=192.168.1.25 
    4. 

  4. 10:36:26.800 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.version=1.8.0_144 
    5. 

  5. 10:36:26.800 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.vendor=Oracle Corporation 
    6. 

  6. 10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre 
    7. 

  7. 10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.class.path=/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/lib/tools.jar:/Users/duanmengyang/IdeaProjects/crowdsource-backend/target/classes:/Users/duanmengyang/.m2/repository/org/springframework/boot/spring-boot-starter-web/2.1.4.RELEASE/spring-boot-starter-web-2.1.4.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/boot/spring-boot-starter/2.1.4.RELEASE/spring-boot-starter-2.1.4.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/boot/spring-boot/2.1.4.RELEASE/spring-boot-2.1.4.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.1.4.RELEASE/spring-boot-autoconfigure-2.1.4.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/boot/spring-boot-starter-logging/2.1.4.RELEASE/spring-boot-starter-logging-2.1.4.RELEASE.jar:/Users/duanmengyang/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar:/Users/duanmengyang/.m2/repository/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar:/Users/duanmengyang/.m2/repository/org/apache/logging/log4j/log4j-to-slf4j/2.11.2/log4j-to-slf4j-2.11.2.jar:/Users/duanmengyang/.m2/repository/org/apache/logging/log4j/log4j-api/2.11.2/log4j-api-2.11.2.jar:/Users/duanmengyang/.m2/repository/org/slf4j/jul-to-slf4j/1.7.26/jul-to-slf4j-1.7.26.jar:/Users/duanmengyang/.m2/repository/javax/annotation/javax.annotation-api/1.3.2/javax.annotation-api-1.3.2.jar:/Users/duanmengyang/.m2/repository/org/yaml/snakeyaml/1.23/snakeyaml-1.23.jar:/Users/duanmengyang/.m2/repository/org/springframework/boot/spring-boot-starter-json/2.1.4.RELEASE/spring-boot-starter-json-2.1.4.RELEASE.jar:/Users/duanmengyang/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.9.8/jackson-databind-2.9.8.jar:/Users/duanmengyang/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.9.0/jackson-annotations-2.9.0.jar:/Users/duanmengyang/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.9.8/jackson-core-2.9.8.jar:/Users/duanmengyang/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.9.8/jackson-datatype-jdk8-2.9.8.jar:/Users/duanmengyang/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.9.8/jackson-datatype-jsr310-2.9.8.jar:/Users/duanmengyang/.m2/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.9.8/jackson-module-parameter-names-2.9.8.jar:/Users/duanmengyang/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/2.1.4.RELEASE/spring-boot-starter-tomcat-2.1.4.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar:/Users/duanmengyang/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/9.0.17/tomcat-embed-el-9.0.17.jar:/Users/duanmengyang/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/9.0.17/tomcat-embed-websocket-9.0.17.jar:/Users/duanmengyang/.m2/repository/org/hibernate/validator/hibernate-validator/6.0.16.Final/hibernate-validator-6.0.16.Final.jar:/Users/duanmengyang/.m2/repository/javax/validation/validation-api/2.0.1.Final/validation-api-2.0.1.Final.jar:/Users/duanmengyang/.m2/repository/org/jboss/logging/jboss-logging/3.3.2.Final/jboss-logging-3.3.2.Final.jar:/Users/duanmengyang/.m2/repository/com/fasterxml/classmate/1.4.0/classmate-1.4.0.jar:/Users/duanmengyang/.m2/repository/org/springframework/spring-web/5.1.6.RELEASE/spring-web-5.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/spring-beans/5.1.6.RELEASE/spring-beans-5.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/spring-webmvc/5.1.6.RELEASE/spring-webmvc-5.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/spring-context/5.1.6.RELEASE/spring-context-5.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/spring-expression/5.1.6.RELEASE/spring-expression-5.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/session/spring-session-core/2.1.5.RELEASE/spring-session-core-2.1.5.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/spring-jcl/5.1.6.RELEASE/spring-jcl-5.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/slf4j/slf4j-api/1.7.26/slf4j-api-1.7.26.jar:/Users/duanmengyang/.m2/repository/org/springframework/spring-core/5.1.6.RELEASE/spring-core-5.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/com/google/code/gson/gson/2.8.2/gson-2.8.2.jar:/Users/duanmengyang/.m2/repository/org/json/json/20160810/json-20160810.jar:/Users/duanmengyang/.m2/repository/org/apache/poi/poi/3.17/poi-3.17.jar:/Users/duanmengyang/.m2/repository/commons-codec/commons-codec/1.11/commons-codec-1.11.jar:/Users/duanmengyang/.m2/repository/org/apache/commons/commons-collections4/4.1/commons-collections4-4.1.jar:/Users/duanmengyang/.m2/repository/org/apache/poi/poi-ooxml/3.17/poi-ooxml-3.17.jar:/Users/duanmengyang/.m2/repository/org/apache/poi/poi-ooxml-schemas/3.17/poi-ooxml-schemas-3.17.jar:/Users/duanmengyang/.m2/repository/org/apache/xmlbeans/xmlbeans/2.6.0/xmlbeans-2.6.0.jar:/Users/duanmengyang/.m2/repository/com/github/virtuald/curvesapi/1.04/curvesapi-1.04.jar:/Users/duanmengyang/.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/duanmengyang/.m2/repository/org/mongodb/mongodb-driver/3.8.2/mongodb-driver-3.8.2.jar:/Users/duanmengyang/.m2/repository/org/mongodb/bson/3.8.2/bson-3.8.2.jar:/Users/duanmengyang/.m2/repository/org/mongodb/mongodb-driver-core/3.8.2/mongodb-driver-core-3.8.2.jar:/Users/duanmengyang/.m2/repository/org/springframework/data/spring-data-mongodb/2.1.6.RELEASE/spring-data-mongodb-2.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/spring-tx/5.1.6.RELEASE/spring-tx-5.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/data/spring-data-commons/2.1.6.RELEASE/spring-data-commons-2.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/commons-fileupload/commons-fileupload/1.2.1/commons-fileupload-1.2.1.jar:/Users/duanmengyang/.m2/repository/org/ansj/ansj_seg/5.1.1/ansj_seg-5.1.1.jar:/Users/duanmengyang/.m2/repository/org/nlpcn/nlp-lang/1.7.2/nlp-lang-1.7.2.jar:/Users/duanmengyang/.m2/repository/com/hankcs/hanlp/portable-1.7.0/hanlp-portable-1.7.0.jar:/Users/duanmengyang/.m2/repository/org/projectlombok/lombok/1.18.8/lombok-1.18.8.jar:/Users/duanmengyang/.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/duanmengyang/.m2/repository/org/springframework/cloud/spring-cloud-starter-zookeeper/2.1.2.RELEASE/spring-cloud-starter-zookeeper-2.1.2.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/cloud/spring-cloud-commons/2.1.2.RELEASE/spring-cloud-commons-2.1.2.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/cloud/spring-cloud-zookeeper-core/2.1.2.RELEASE/spring-cloud-zookeeper-core-2.1.2.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/cloud/spring-cloud-zookeeper-config/2.1.2.RELEASE/spring-cloud-zookeeper-config-2.1.2.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/apache/curator/curator-recipes/4.0.1/curator-recipes-4.0.1.jar:/Users/duanmengyang/.m2/repository/org/apache/curator/curator-framework/4.0.1/curator-framework-4.0.1.jar:/Users/duanmengyang/.m2/repository/org/apache/curator/curator-client/4.0.1/curator-client-4.0.1.jar:/Users/duanmengyang/.m2/repository/org/apache/zookeeper/zookeeper/3.5.3-beta/zookeeper-3.5.3-beta.jar:/Users/duanmengyang/.m2/repository/commons-cli/commons-cli/1.2/commons-cli-1.2.jar:/Users/duanmengyang/.m2/repository/org/springframework/cloud/spring-cloud-context/2.1.2.RELEASE/spring-cloud-context-2.1.2.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/security/spring-security-crypto/5.1.5.RELEASE/spring-security-crypto-5.1.5.RELEASE.jar:/Users/duanmengyang/.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/duanmengyang/.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/duanmengyang/.m2/repository/com/alibaba/nacos/nacos-client/1.1.1/nacos-client-1.1.1.jar:/Users/duanmengyang/.m2/repository/com/alibaba/nacos/nacos-common/1.1.1/nacos-common-1.1.1.jar:/Users/duanmengyang/.m2/repository/commons-io/commons-io/2.2/commons-io-2.2.jar:/Users/duanmengyang/.m2/repository/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar:/Users/duanmengyang/.m2/repository/com/alibaba/nacos/nacos-api/1.1.1/nacos-api-1.1.1.jar:/Users/duanmengyang/.m2/repository/com/alibaba/fastjson/1.2.47/fastjson-1.2.47.jar:/Users/duanmengyang/.m2/repository/com/google/guava/guava/19.0/guava-19.0.jar:/Users/duanmengyang/.m2/repository/io/prometheus/simpleclient/0.5.0/simpleclient-0.5.0.jar:/Users/duanmengyang/.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/duanmengyang/.m2/repository/org/springframework/cloud/spring-cloud-starter/2.1.2.RELEASE/spring-cloud-starter-2.1.2.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/security/spring-security-rsa/1.0.7.RELEASE/spring-security-rsa-1.0.7.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/bouncycastle/bcpkix-jdk15on/1.60/bcpkix-jdk15on-1.60.jar:/Users/duanmengyang/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.60/bcprov-jdk15on-1.60.jar:/Users/duanmengyang/.m2/repository/org/springframework/cloud/spring-cloud-netflix-ribbon/2.1.2.RELEASE/spring-cloud-netflix-ribbon-2.1.2.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/cloud/spring-cloud-netflix-archaius/2.1.2.RELEASE/spring-cloud-netflix-archaius-2.1.2.RELEASE.jar:/Users/duanmengyang/.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/duanmengyang/.m2/repository/com/netflix/archaius/archaius-core/0.7.6/archaius-core-0.7.6.jar:/Users/duanmengyang/.m2/repository/com/google/code/findbugs/jsr305/3.0.1/jsr305-3.0.1.jar:/Users/duanmengyang/.m2/repository/commons-configuration/commons-configuration/1.8/commons-configuration-1.8.jar:/Users/duanmengyang/.m2/repository/com/netflix/ribbon/ribbon/2.3.0/ribbon-2.3.0.jar:/Users/duanmengyang/.m2/repository/com/netflix/ribbon/ribbon-transport/2.3.0/ribbon-transport-2.3.0.jar:/Users/duanmengyang/.m2/repository/io/reactivex/rxnetty-contexts/0.4.9/rxnetty-contexts-0.4.9.jar:/Users/duanmengyang/.m2/repository/io/reactivex/rxnetty-servo/0.4.9/rxnetty-servo-0.4.9.jar:/Users/duanmengyang/.m2/repository/com/netflix/hystrix/hystrix-core/1.5.18/hystrix-core-1.5.18.jar:/Users/duanmengyang/.m2/repository/org/hdrhistogram/HdrHistogram/2.1.9/HdrHistogram-2.1.9.jar:/Users/duanmengyang/.m2/repository/javax/inject/javax.inject/1/javax.inject-1.jar:/Users/duanmengyang/.m2/repository/io/reactivex/rxnetty/0.4.9/rxnetty-0.4.9.jar:/Users/duanmengyang/.m2/repository/com/netflix/ribbon/ribbon-core/2.3.0/ribbon-core-2.3.0.jar:/Users/duanmengyang/.m2/repository/commons-lang/commons-lang/2.6/commons-lang-2.6.jar:/Users/duanmengyang/.m2/repository/com/netflix/ribbon/ribbon-httpclient/2.3.0/ribbon-httpclient-2.3.0.jar:/Users/duanmengyang/.m2/repository/commons-collections/commons-collections/3.2.2/commons-collections-3.2.2.jar:/Users/duanmengyang/.m2/repository/com/sun/jersey/jersey-client/1.19.1/jersey-client-1.19.1.jar:/Users/duanmengyang/.m2/repository/com/sun/jersey/jersey-core/1.19.1/jersey-core-1.19.1.jar:/Users/duanmengyang/.m2/repository/javax/ws/rs/jsr311-api/1.1.1/jsr311-api-1.1.1.jar:/Users/duanmengyang/.m2/repository/com/sun/jersey/contribs/jersey-apache-client4/1.19.1/jersey-apache-client4-1.19.1.jar:/Users/duanmengyang/.m2/repository/com/netflix/servo/servo-core/0.12.21/servo-core-0.12.21.jar:/Users/duanmengyang/.m2/repository/com/netflix/netflix-commons/netflix-commons-util/0.3.0/netflix-commons-util-0.3.0.jar:/Users/duanmengyang/.m2/repository/com/netflix/ribbon/ribbon-loadbalancer/2.3.0/ribbon-loadbalancer-2.3.0.jar:/Users/duanmengyang/.m2/repository/com/netflix/netflix-commons/netflix-statistics/0.1.1/netflix-statistics-0.1.1.jar:/Users/duanmengyang/.m2/repository/io/reactivex/rxjava/1.3.8/rxjava-1.3.8.jar:/Users/duanmengyang/.m2/repository/com/aliyun/oss/aliyun-sdk-oss/3.8.0/aliyun-sdk-oss-3.8.0.jar:/Users/duanmengyang/.m2/repository/org/apache/httpcomponents/httpclient/4.5.8/httpclient-4.5.8.jar:/Users/duanmengyang/.m2/repository/org/apache/httpcomponents/httpcore/4.4.11/httpcore-4.4.11.jar:/Users/duanmengyang/.m2/repository/org/jdom/jdom/1.1/jdom-1.1.jar:/Users/duanmengyang/.m2/repository/org/codehaus/jettison/jettison/1.1/jettison-1.1.jar:/Users/duanmengyang/.m2/repository/stax/stax-api/1.0.1/stax-api-1.0.1.jar:/Users/duanmengyang/.m2/repository/com/aliyun/aliyun-java-sdk-core/3.4.0/aliyun-java-sdk-core-3.4.0.jar:/Users/duanmengyang/.m2/repository/com/aliyun/aliyun-java-sdk-ram/3.0.0/aliyun-java-sdk-ram-3.0.0.jar:/Users/duanmengyang/.m2/repository/com/aliyun/aliyun-java-sdk-sts/3.0.0/aliyun-java-sdk-sts-3.0.0.jar:/Users/duanmengyang/.m2/repository/com/aliyun/aliyun-java-sdk-ecs/4.2.0/aliyun-java-sdk-ecs-4.2.0.jar:/Users/duanmengyang/.m2/repository/org/springframework/boot/spring-boot-starter-aop/2.1.4.RELEASE/spring-boot-starter-aop-2.1.4.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/springframework/spring-aop/5.1.6.RELEASE/spring-aop-5.1.6.RELEASE.jar:/Users/duanmengyang/.m2/repository/org/aspectj/aspectjweaver/1.9.2/aspectjweaver-1.9.2.jar:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar 
    8. 

  8. 10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.library.path=/Users/duanmengyang/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:. 
    9. 

  9. 10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.io.tmpdir=/var/folders/nc/l9fhpfxn1z59qnkh68zb5dz40000gn/T/ 
    10. 

  10. 10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.compiler=<NA> 
    11. 

  11. 10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.name=Mac OS X 
    12. 

  12. 10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.arch=x86_64 
    13. 

  13. 10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.version=10.14.6 
    14. 

  14. 10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.name=duanmengyang 
    15. 

  15. 10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.home=/Users/duanmengyang 
    16. 

  16. 10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.dir=/Users/duanmengyang/IdeaProjects/crowdsource-backend 
    17. 

  17. 10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.free=55MB 
    18. 

  18. 10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.max=1820MB 
    19. 

  19. 10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.total=117MB 
    20. 

  20. 10:36:26.839 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    21. 

  21. 10:36:26.847 [main] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@3d97a632 
    22. 

  22. 10:36:26.861 [main] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    23. 

  23. 10:36:26.883 [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. 10:36:26.898 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    25. 

  25. 10:36:26.948 [main-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65121, server: 101.37.175.111/101.37.175.111:2181 
    26. 

  26. 10:36:27.007 [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 = 0x17559ef9a3f03b2, negotiated timeout = 40000 
    27. 

  27. 10:36:27.023 [main-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    28. 

  28. 10:36:38.130 [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. 10:36:43.186 [main] INFO  edu.nju.BugApplication - The following profiles are active: dev 
    30. 

  30. 10:36:43.747 [main] INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Bootstrapping Spring Data repositories in DEFAULT mode. 
    31. 

  31. 10:36:43.764 [main] INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Finished Spring Data repository scanning in 15ms. Found 0 repository interfaces. 
    32. 

  32. 10:36:43.904 [main] INFO  o.s.c.context.scope.GenericScope - BeanFactory id=cc66e5ed-bc9a-3afa-bee4-8769305f20f9 
    33. 

  33. 10:36:44.078 [main] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    34. 

  34. 10:36:44.433 [main] INFO  o.s.b.w.e.tomcat.TomcatWebServer - Tomcat initialized with port(s): 8090 (http) 
    35. 

  35. 10:36:44.454 [main] INFO  o.a.catalina.core.StandardService - Starting service [Tomcat] 
    36. 

  36. 10:36:44.454 [main] INFO  o.a.catalina.core.StandardEngine - Starting Servlet engine: [Apache Tomcat/9.0.17] 
    37. 

  37. 10:36:44.557 [main] INFO  o.a.c.c.C.[.[localhost].[/Bug/api] - Initializing Spring embedded WebApplicationContext 
    38. 

  38. 10:36:44.557 [main] INFO  o.s.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 1360 ms 
    39. 

  39. 10:36:49.856 [main] INFO  org.mongodb.driver.cluster - Cluster created with settings {hosts=[localhost:27017], mode=SINGLE, requiredClusterType=UNKNOWN, serverSelectionTimeout='30000 ms', maxWaitQueueSize=500} 
    40. 

  40. 10:36:49.925 [cluster-ClusterId{value='5f9f70c13df3f916254d1389', description='null'}-localhost:27017] INFO  org.mongodb.driver.connection - Opened connection [connectionId{localValue:1, serverValue:9}] to localhost:27017 
    41. 

  41. 10:36:49.930 [cluster-ClusterId{value='5f9f70c13df3f916254d1389', 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, 3]}, minWireVersion=0, maxWireVersion=7, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=2751372} 
    42. 

  42. 10:36:50.270 [main] INFO  org.mongodb.driver.connection - Opened connection [connectionId{localValue:2, serverValue:10}] to localhost:27017 
    43. 

  43. 10:36:50.522 [main] WARN  c.n.c.s.URLConfigurationSource - No URLs will be polled as dynamic configuration sources. 
    44. 

  44. 10:36:50.522 [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. 10:36:50.528 [main] WARN  c.n.c.s.URLConfigurationSource - No URLs will be polled as dynamic configuration sources. 
    46. 

  46. 10:36:50.528 [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. 10:36:50.707 [main] INFO  o.s.s.c.ThreadPoolTaskExecutor - Initializing ExecutorService 'applicationTaskExecutor' 
    48. 

  48. 10:36:50.891 [main] INFO  o.s.s.c.ThreadPoolTaskScheduler - Initializing ExecutorService 
    49. 

  49. 10:36:51.169 [main] INFO  o.s.b.w.e.tomcat.TomcatWebServer - Tomcat started on port(s): 8090 (http) with context path '/Bug/api' 
    50. 

  50. 10:36:51.306 [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='192.168.1.25', 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:10)
    78. 

  78. 10:36:51.309 [main] INFO  edu.nju.BugApplication - Started BugApplication in 45.483 seconds (JVM running for 56.287) 
    79. 

  79. 10:36:51.355 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    80. 

  80. 10:36:51.372 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    81. 

  81. 10:36:51.373 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@57672c75 
    82. 

  82. 10:36:51.373 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    83. 

  83. 10:36:51.373 [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) 
    84. 

  84. 10:36:51.373 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    85. 

  85. 10:36:52.746 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65129, server: 101.37.175.111/101.37.175.111:2181 
    86. 

  86. 10:36:52.890 [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 = 0x17559ef9a3f03b3, negotiated timeout = 40000 
    87. 

  87. 10:36:52.891 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    88. 

  88. 10:36:57.368 [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. 10:37:02.398 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    90. 

  90. 10:37:02.405 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 11.09 seconds (JVM running for 67.383) 
    91. 

  91. 10:37:02.406 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    92. 

  92. 10:37:02.486 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b3 closed 
    93. 

  93. 10:37:02.486 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b3 
    94. 

  94. 10:37:02.507 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    95. 

  95. 10:37:02.540 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    96. 

  96. 10:37:02.555 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    97. 

  97. 10:37:02.555 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@727ff035 
    98. 

  98. 10:37:02.555 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    99. 

  99. 10:37:02.556 [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. 10:37:02.556 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    101. 

  101. 10:37:02.679 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65133, server: 101.37.175.111/101.37.175.111:2181 
    102. 

  102. 10:37:02.699 [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 = 0x17559ef9a3f03b4, negotiated timeout = 40000 
    103. 

  103. 10:37:02.699 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    104. 

  104. 10:37:05.484 [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. 10:37:10.508 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    106. 

  106. 10:37:10.514 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 8.006 seconds (JVM running for 75.492) 
    107. 

  107. 10:37:10.514 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    108. 

  108. 10:37:10.634 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b4 closed 
    109. 

  109. 10:37:10.634 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b4 
    110. 

  110. 10:37:10.655 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    111. 

  111. 10:37:10.706 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    112. 

  112. 10:37:10.721 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    113. 

  113. 10:37:10.721 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@8a46263 
    114. 

  114. 10:37:10.722 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    115. 

  115. 10:37:10.722 [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) 
    116. 

  116. 10:37:10.722 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    117. 

  117. 10:37:10.749 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65136, server: 101.37.175.111/101.37.175.111:2181 
    118. 

  118. 10:37:10.768 [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 = 0x17559ef9a3f03b5, negotiated timeout = 40000 
    119. 

  119. 10:37:10.768 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    120. 

  120. 10:37:11.325 [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%22192.168.1.25%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 
    121. 

  121. 10:37:11.326 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    122. 

  122. java.net.ConnectException: Connection refused (Connection refused)
    123. 

  123. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    124. 

  124. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    125. 

  125. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    126. 

  126. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    127. 

  127. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    128. 

  128. 	at java.net.Socket.connect(Socket.java:589)
    129. 

  129. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    130. 

  130. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    131. 

  131. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    132. 

  132. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    133. 

  133. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    134. 

  134. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    135. 

  135. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    136. 

  136. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    137. 

  137. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    138. 

  138. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    139. 

  139. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    140. 

  140. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    141. 

  141. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    142. 

  142. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    143. 

  143. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    144. 

  144. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    145. 

  145. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    146. 

  146. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    147. 

  147. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    148. 

  148. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    149. 

  149. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    150. 

  150. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    151. 

  151. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    152. 

  152. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    153. 

  153. 	at java.lang.Thread.run(Thread.java:748)
    154. 

  154. 10:37:11.326 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    155. 

  155. 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)
    156. 

  156. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    157. 

  157. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    158. 

  158. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    159. 

  159. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    160. 

  160. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    161. 

  161. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    162. 

  162. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    163. 

  163. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    164. 

  164. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    165. 

  165. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    166. 

  166. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    167. 

  167. 	at java.lang.Thread.run(Thread.java:748)
    168. 

  168. 10:37:11.326 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    169. 

  169. 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)
    170. 

  170. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    171. 

  171. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    172. 

  172. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    173. 

  173. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    174. 

  174. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    175. 

  175. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    176. 

  176. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    177. 

  177. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    178. 

  178. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    179. 

  179. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    180. 

  180. 	at java.lang.Thread.run(Thread.java:748)
    181. 

  181. 10:37:12.259 [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'}]} 
    182. 

  182. 10:37:17.319 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    183. 

  183. 10:37:17.329 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 6.674 seconds (JVM running for 82.307) 
    184. 

  184. 10:37:17.329 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    185. 

  185. 10:37:17.346 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b5 
    186. 

  186. 10:37:17.346 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b5 closed 
    187. 

  187. 10:37:17.369 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    188. 

  188. 10:37:17.413 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    189. 

  189. 10:37:17.427 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    190. 

  190. 10:37:17.428 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@54f8f06d 
    191. 

  191. 10:37:17.428 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    192. 

  192. 10:37:17.428 [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) 
    193. 

  193. 10:37:17.428 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    194. 

  194. 10:37:17.451 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65140, server: 101.37.175.111/101.37.175.111:2181 
    195. 

  195. 10:37:17.475 [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 = 0x17559ef9a3f03b6, negotiated timeout = 40000 
    196. 

  196. 10:37:17.475 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    197. 

  197. 10:37:18.108 [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'}]} 
    198. 

  198. 10:37:23.125 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    199. 

  199. 10:37:23.134 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 5.764 seconds (JVM running for 88.117) 
    200. 

  200. 10:37:23.134 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    201. 

  201. 10:37:23.152 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b6 
    202. 

  202. 10:37:23.152 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b6 closed 
    203. 

  203. 10:37:23.172 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    204. 

  204. 10:37:23.246 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    205. 

  205. 10:37:23.260 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    206. 

  206. 10:37:23.261 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@668767b0 
    207. 

  207. 10:37:23.261 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    208. 

  208. 10:37:23.261 [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. 10:37:23.261 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    210. 

  210. 10:37:23.744 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65142, server: 101.37.175.111/101.37.175.111:2181 
    211. 

  211. 10:37:23.761 [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 = 0x17559ef9a3f03b7, negotiated timeout = 40000 
    212. 

  212. 10:37:23.762 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    213. 

  213. 10:37:24.209 [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. 10:37:29.221 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    215. 

  215. 10:37:29.231 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 6.058 seconds (JVM running for 94.22) 
    216. 

  216. 10:37:29.232 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    217. 

  217. 10:37:29.347 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b7 closed 
    218. 

  218. 10:37:29.347 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b7 
    219. 

  219. 10:37:29.362 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    220. 

  220. 10:37:29.408 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    221. 

  221. 10:37:29.423 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    222. 

  222. 10:37:29.423 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@633440b9 
    223. 

  223. 10:37:29.424 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    224. 

  224. 10:37:29.424 [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. 10:37:29.424 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    226. 

  226. 10:37:29.644 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65144, server: 101.37.175.111/101.37.175.111:2181 
    227. 

  227. 10:37:29.678 [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 = 0x17559ef9a3f03b8, negotiated timeout = 40000 
    228. 

  228. 10:37:29.678 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    229. 

  229. 10:37:31.335 [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%22192.168.1.25%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 
    230. 

  230. 10:37:31.335 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    231. 

  231. java.net.ConnectException: Connection refused (Connection refused)
    232. 

  232. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    233. 

  233. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    234. 

  234. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    235. 

  235. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    236. 

  236. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    237. 

  237. 	at java.net.Socket.connect(Socket.java:589)
    238. 

  238. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    239. 

  239. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    240. 

  240. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    241. 

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

  242. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    243. 

  243. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    244. 

  244. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    245. 

  245. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    246. 

  246. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    247. 

  247. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    248. 

  248. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    249. 

  249. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    250. 

  250. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    251. 

  251. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    252. 

  252. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    253. 

  253. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    254. 

  254. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    255. 

  255. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    256. 

  256. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    257. 

  257. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    258. 

  258. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    259. 

  259. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    260. 

  260. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    261. 

  261. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    262. 

  262. 	at java.lang.Thread.run(Thread.java:748)
    263. 

  263. 10:37:31.335 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    264. 

  264. 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)
    265. 

  265. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    266. 

  266. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    267. 

  267. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    268. 

  268. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    269. 

  269. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    270. 

  270. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    271. 

  271. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    272. 

  272. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    273. 

  273. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    274. 

  274. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    275. 

  275. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    276. 

  276. 	at java.lang.Thread.run(Thread.java:748)
    277. 

  277. 10:37:31.336 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    278. 

  278. 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)
    279. 

  279. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    280. 

  280. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    281. 

  281. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    282. 

  282. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    283. 

  283. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    284. 

  284. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    285. 

  285. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    286. 

  286. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    287. 

  287. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    288. 

  288. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    289. 

  289. 	at java.lang.Thread.run(Thread.java:748)
    290. 

  290. 10:37:36.336 [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%22192.168.1.25%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 
    291. 

  291. 10:37:36.336 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    292. 

  292. java.net.ConnectException: Connection refused (Connection refused)
    293. 

  293. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    294. 

  294. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    295. 

  295. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    296. 

  296. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    297. 

  297. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    298. 

  298. 	at java.net.Socket.connect(Socket.java:589)
    299. 

  299. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    300. 

  300. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    301. 

  301. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    302. 

  302. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    303. 

  303. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    304. 

  304. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    305. 

  305. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    306. 

  306. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    307. 

  307. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    308. 

  308. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    309. 

  309. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    310. 

  310. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    311. 

  311. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    312. 

  312. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    313. 

  313. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    314. 

  314. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    315. 

  315. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    316. 

  316. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    317. 

  317. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    318. 

  318. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    319. 

  319. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    320. 

  320. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    321. 

  321. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    322. 

  322. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    323. 

  323. 	at java.lang.Thread.run(Thread.java:748)
    324. 

  324. 10:37:36.336 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    325. 

  325. 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)
    326. 

  326. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    327. 

  327. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    328. 

  328. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    329. 

  329. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    330. 

  330. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    331. 

  331. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    332. 

  332. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    333. 

  333. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    334. 

  334. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    335. 

  335. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    336. 

  336. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    337. 

  337. 	at java.lang.Thread.run(Thread.java:748)
    338. 

  338. 10:37:36.336 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    339. 

  339. 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)
    340. 

  340. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    341. 

  341. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    342. 

  342. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    343. 

  343. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    344. 

  344. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    345. 

  345. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    346. 

  346. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    347. 

  347. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    348. 

  348. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    349. 

  349. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    350. 

  350. 	at java.lang.Thread.run(Thread.java:748)
    351. 

  351. 10:37:38.839 [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'}]} 
    352. 

  352. 10:37:43.860 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    353. 

  353. 10:37:43.867 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 14.503 seconds (JVM running for 108.862) 
    354. 

  354. 10:37:43.867 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    355. 

  355. 10:37:43.920 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b8 closed 
    356. 

  356. 10:37:43.920 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b8 
    357. 

  357. 10:37:43.938 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    358. 

  358. 10:37:43.982 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    359. 

  359. 10:37:43.994 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    360. 

  360. 10:37:43.994 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@456b0944 
    361. 

  361. 10:37:43.994 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    362. 

  362. 10:37:43.994 [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) 
    363. 

  363. 10:37:43.995 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    364. 

  364. 10:37:44.052 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65148, server: 101.37.175.111/101.37.175.111:2181 
    365. 

  365. 10:37:44.078 [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 = 0x17559ef9a3f03b9, negotiated timeout = 40000 
    366. 

  366. 10:37:44.078 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    367. 

  367. 10:37:44.651 [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'}]} 
    368. 

  368. 10:37:49.672 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    369. 

  369. 10:37:49.679 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 5.739 seconds (JVM running for 114.675) 
    370. 

  370. 10:37:49.679 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    371. 

  371. 10:37:49.738 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b9 closed 
    372. 

  372. 10:37:49.739 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b9 
    373. 

  373. 10:37:49.759 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    374. 

  374. 10:37:49.808 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    375. 

  375. 10:37:49.823 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    376. 

  376. 10:37:49.825 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@323e03c1 
    377. 

  377. 10:37:49.826 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    378. 

  378. 10:37:49.829 [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) 
    379. 

  379. 10:37:49.830 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    380. 

  380. 10:37:49.853 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65150, server: 101.37.175.111/101.37.175.111:2181 
    381. 

  381. 10:37:49.976 [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 = 0x17559ef9a3f03ba, negotiated timeout = 40000 
    382. 

  382. 10:37:49.978 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    383. 

  383. 10:37:51.347 [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%22192.168.1.25%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 
    384. 

  384. 10:37:51.348 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    385. 

  385. java.net.ConnectException: Connection refused (Connection refused)
    386. 

  386. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    387. 

  387. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    388. 

  388. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    389. 

  389. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    390. 

  390. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    391. 

  391. 	at java.net.Socket.connect(Socket.java:589)
    392. 

  392. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    393. 

  393. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    394. 

  394. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    395. 

  395. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    396. 

  396. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    397. 

  397. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    398. 

  398. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    399. 

  399. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    400. 

  400. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    401. 

  401. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    402. 

  402. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    403. 

  403. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    404. 

  404. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    405. 

  405. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    406. 

  406. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    407. 

  407. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    408. 

  408. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    409. 

  409. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    410. 

  410. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    411. 

  411. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    412. 

  412. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    413. 

  413. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    414. 

  414. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    415. 

  415. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    416. 

  416. 	at java.lang.Thread.run(Thread.java:748)
    417. 

  417. 10:37:51.348 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    418. 

  418. 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)
    419. 

  419. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    420. 

  420. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    421. 

  421. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    422. 

  422. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    423. 

  423. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    424. 

  424. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    425. 

  425. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    426. 

  426. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    427. 

  427. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    428. 

  428. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    429. 

  429. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    430. 

  430. 	at java.lang.Thread.run(Thread.java:748)
    431. 

  431. 10:37:51.348 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    432. 

  432. 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)
    433. 

  433. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    434. 

  434. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    435. 

  435. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    436. 

  436. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    437. 

  437. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    438. 

  438. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    439. 

  439. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    440. 

  440. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    441. 

  441. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    442. 

  442. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    443. 

  443. 	at java.lang.Thread.run(Thread.java:748)
    444. 

  444. 10:37:54.139 [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'}]} 
    445. 

  445. 10:37:59.164 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    446. 

  446. 10:37:59.177 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 9.417 seconds (JVM running for 124.175) 
    447. 

  447. 10:37:59.177 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    448. 

  448. 10:37:59.389 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03ba closed 
    449. 

  449. 10:37:59.389 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03ba 
    450. 

  450. 10:37:59.405 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    451. 

  451. 10:37:59.437 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    452. 

  452. 10:37:59.448 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    453. 

  453. 10:37:59.449 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@3aa50397 
    454. 

  454. 10:37:59.449 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    455. 

  455. 10:37:59.449 [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) 
    456. 

  456. 10:37:59.449 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    457. 

  457. 10:37:59.597 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65153, server: 101.37.175.111/101.37.175.111:2181 
    458. 

  458. 10:37:59.644 [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 = 0x17559ef9a3f03bb, negotiated timeout = 40000 
    459. 

  459. 10:37:59.644 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    460. 

  460. 10:38:01.358 [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%22192.168.1.25%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 
    461. 

  461. 10:38:01.358 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    462. 

  462. java.net.ConnectException: Connection refused (Connection refused)
    463. 

  463. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    464. 

  464. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    465. 

  465. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    466. 

  466. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    467. 

  467. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    468. 

  468. 	at java.net.Socket.connect(Socket.java:589)
    469. 

  469. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    470. 

  470. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    471. 

  471. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    472. 

  472. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    473. 

  473. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    474. 

  474. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    475. 

  475. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    476. 

  476. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    477. 

  477. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    478. 

  478. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    479. 

  479. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    480. 

  480. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    481. 

  481. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    482. 

  482. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    483. 

  483. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    484. 

  484. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    485. 

  485. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    486. 

  486. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    487. 

  487. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    488. 

  488. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    489. 

  489. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    490. 

  490. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    491. 

  491. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    492. 

  492. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    493. 

  493. 	at java.lang.Thread.run(Thread.java:748)
    494. 

  494. 10:38:01.358 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    495. 

  495. 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)
    496. 

  496. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    497. 

  497. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    498. 

  498. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    499. 

  499. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    500. 

  500. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    501. 

  501. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    502. 

  502. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    503. 

  503. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    504. 

  504. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    505. 

  505. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    506. 

  506. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    507. 

  507. 	at java.lang.Thread.run(Thread.java:748)
    508. 

  508. 10:38:01.358 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    509. 

  509. 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)
    510. 

  510. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    511. 

  511. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    512. 

  512. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    513. 

  513. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    514. 

  514. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    515. 

  515. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    516. 

  516. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    517. 

  517. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    518. 

  518. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    519. 

  519. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    520. 

  520. 	at java.lang.Thread.run(Thread.java:748)
    521. 

  521. 10:38:04.023 [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'}]} 
    522. 

  522. 10:38:09.041 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    523. 

  523. 10:38:09.053 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 9.647 seconds (JVM running for 134.053) 
    524. 

  524. 10:38:09.054 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    525. 

  525. 10:38:09.168 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03bb closed 
    526. 

  526. 10:38:09.168 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03bb 
    527. 

  527. 10:38:09.180 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    528. 

  528. 10:38:09.249 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    529. 

  529. 10:38:09.268 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    530. 

  530. 10:38:09.268 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@6c475f23 
    531. 

  531. 10:38:09.268 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    532. 

  532. 10:38:09.269 [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) 
    533. 

  533. 10:38:09.269 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    534. 

  534. 10:38:09.330 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65181, server: 101.37.175.111/101.37.175.111:2181 
    535. 

  535. 10:38:09.410 [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 = 0x17559ef9a3f03bc, negotiated timeout = 40000 
    536. 

  536. 10:38:09.411 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    537. 

  537. 10:38:11.367 [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%22192.168.1.25%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 
    538. 

  538. 10:38:11.368 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    539. 

  539. java.net.ConnectException: Connection refused (Connection refused)
    540. 

  540. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    541. 

  541. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    542. 

  542. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    543. 

  543. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    544. 

  544. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    545. 

  545. 	at java.net.Socket.connect(Socket.java:589)
    546. 

  546. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    547. 

  547. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    548. 

  548. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    549. 

  549. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    550. 

  550. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    551. 

  551. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    552. 

  552. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    553. 

  553. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    554. 

  554. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    555. 

  555. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    556. 

  556. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    557. 

  557. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    558. 

  558. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    559. 

  559. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    560. 

  560. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    561. 

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

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

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

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

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

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

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

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

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

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

  571. 10:38:11.368 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    572. 

  572. 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)
    573. 

  573. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    574. 

  574. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    575. 

  575. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    576. 

  576. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    577. 

  577. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    578. 

  578. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    579. 

  579. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    580. 

  580. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    581. 

  581. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    582. 

  582. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    583. 

  583. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    584. 

  584. 	at java.lang.Thread.run(Thread.java:748)
    585. 

  585. 10:38:11.368 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    586. 

  586. 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)
    587. 

  587. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    588. 

  588. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    589. 

  589. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    590. 

  590. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    591. 

  591. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    592. 

  592. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    593. 

  593. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    594. 

  594. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    595. 

  595. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    596. 

  596. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    597. 

  597. 	at java.lang.Thread.run(Thread.java:748)
    598. 

  598. 10:38:12.246 [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'}]} 
    599. 

  599. 10:38:17.271 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    600. 

  600. 10:38:17.279 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 8.099 seconds (JVM running for 142.279) 
    601. 

  601. 10:38:17.280 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    602. 

  602. 10:38:17.343 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03bc closed 
    603. 

  603. 10:38:17.343 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03bc 
    604. 

  604. 10:38:17.364 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    605. 

  605. 10:38:17.450 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    606. 

  606. 10:38:17.476 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    607. 

  607. 10:38:17.477 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@4990d33d 
    608. 

  608. 10:38:17.477 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    609. 

  609. 10:38:17.477 [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) 
    610. 

  610. 10:38:17.478 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    611. 

  611. 10:38:17.513 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65195, server: 101.37.175.111/101.37.175.111:2181 
    612. 

  612. 10:38:17.581 [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 = 0x17559ef9a3f03bd, negotiated timeout = 40000 
    613. 

  613. 10:38:17.582 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    614. 

  614. 10:38:19.332 [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'}]} 
    615. 

  615. 10:38:24.351 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    616. 

  616. 10:38:24.360 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 6.994 seconds (JVM running for 149.36) 
    617. 

  617. 10:38:24.361 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    618. 

  618. 10:38:24.380 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03bd closed 
    619. 

  619. 10:38:24.380 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03bd 
    620. 

  620. 10:38:24.396 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    621. 

  621. 10:38:24.446 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    622. 

  622. 10:38:24.470 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    623. 

  623. 10:38:24.470 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@20c288e2 
    624. 

  624. 10:38:24.470 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    625. 

  625. 10:38:24.471 [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) 
    626. 

  626. 10:38:24.471 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    627. 

  627. 10:38:24.518 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65202, server: 101.37.175.111/101.37.175.111:2181 
    628. 

  628. 10:38:24.542 [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 = 0x17559ef9a3f03be, negotiated timeout = 40000 
    629. 

  629. 10:38:24.542 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    630. 

  630. 10:38:25.013 [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'}]} 
    631. 

  631. 10:38:30.040 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    632. 

  632. 10:38:30.054 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 5.657 seconds (JVM running for 155.054) 
    633. 

  633. 10:38:30.056 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    634. 

  634. 10:38:30.073 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03be 
    635. 

  635. 10:38:30.073 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03be closed 
    636. 

  636. 10:38:30.097 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    637. 

  637. 10:38:30.135 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$af2bc049] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying) 
    638. 

  638. 10:38:30.147 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
    639. 

  639. 10:38:30.147 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=101.37.175.111:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@936ce3 
    640. 

  640. 10:38:30.147 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
    641. 

  641. 10:38:30.147 [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) 
    642. 

  642. 10:38:30.147 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
    643. 

  643. 10:38:30.208 [Curator-TreeCache-0-SendThread(101.37.175.111:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.1.25:65213, server: 101.37.175.111/101.37.175.111:2181 
    644. 

  644. 10:38:30.237 [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 = 0x17559ef9a3f03bf, negotiated timeout = 40000 
    645. 

  645. 10:38:30.238 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
    646. 

  646. 10:38:31.000 [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'}]} 
    647. 

  647. 10:38:36.024 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
    648. 

  648. 10:38:36.033 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 5.934 seconds (JVM running for 161.034) 
    649. 

  649. 10:38:36.034 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
    650. 

  650. 10:38:36.086 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03bf closed 
    651. 

  651. 10:38:36.086 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03bf 
    652. 

  652. 10:38:36.108 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
    653. 

  653. 10:38:36.394 [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%22192.168.1.25%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 
    654. 

  654. 10:38:36.395 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    655. 

  655. java.net.ConnectException: Connection refused (Connection refused)
    656. 

  656. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    657. 

  657. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    658. 

  658. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    659. 

  659. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    660. 

  660. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    661. 

  661. 	at java.net.Socket.connect(Socket.java:589)
    662. 

  662. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    663. 

  663. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    664. 

  664. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    665. 

  665. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    666. 

  666. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    667. 

  667. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    668. 

  668. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    669. 

  669. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    670. 

  670. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    671. 

  671. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    672. 

  672. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    673. 

  673. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    674. 

  674. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    675. 

  675. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    676. 

  676. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    677. 

  677. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    678. 

  678. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    679. 

  679. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    680. 

  680. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    681. 

  681. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    682. 

  682. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    683. 

  683. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    684. 

  684. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    685. 

  685. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    686. 

  686. 	at java.lang.Thread.run(Thread.java:748)
    687. 

  687. 10:38:36.395 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    688. 

  688. 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)
    689. 

  689. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    690. 

  690. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    691. 

  691. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    692. 

  692. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    693. 

  693. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    694. 

  694. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    695. 

  695. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    696. 

  696. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    697. 

  697. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    698. 

  698. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    699. 

  699. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    700. 

  700. 	at java.lang.Thread.run(Thread.java:748)
    701. 

  701. 10:38:36.396 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    702. 

  702. 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)
    703. 

  703. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    704. 

  704. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    705. 

  705. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    706. 

  706. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    707. 

  707. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    708. 

  708. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    709. 

  709. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    710. 

  710. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    711. 

  711. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    712. 

  712. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    713. 

  713. 	at java.lang.Thread.run(Thread.java:748)
    714. 

  714. 10:38:41.401 [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%22192.168.1.25%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 
    715. 

  715. 10:38:41.401 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    716. 

  716. java.net.ConnectException: Connection refused (Connection refused)
    717. 

  717. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    718. 

  718. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    719. 

  719. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    720. 

  720. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    721. 

  721. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    722. 

  722. 	at java.net.Socket.connect(Socket.java:589)
    723. 

  723. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    724. 

  724. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    725. 

  725. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    726. 

  726. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    727. 

  727. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    728. 

  728. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    729. 

  729. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    730. 

  730. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    731. 

  731. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    732. 

  732. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    733. 

  733. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    734. 

  734. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    735. 

  735. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    736. 

  736. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    737. 

  737. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    738. 

  738. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    739. 

  739. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    740. 

  740. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    741. 

  741. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    742. 

  742. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    743. 

  743. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    744. 

  744. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    745. 

  745. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    746. 

  746. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    747. 

  747. 	at java.lang.Thread.run(Thread.java:748)
    748. 

  748. 10:38:41.402 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    749. 

  749. 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)
    750. 

  750. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    751. 

  751. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    752. 

  752. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    753. 

  753. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    754. 

  754. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    755. 

  755. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    756. 

  756. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    757. 

  757. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    758. 

  758. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    759. 

  759. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    760. 

  760. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    761. 

  761. 	at java.lang.Thread.run(Thread.java:748)
    762. 

  762. 10:38:41.402 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    763. 

  763. 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)
    764. 

  764. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    765. 

  765. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    766. 

  766. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    767. 

  767. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    768. 

  768. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    769. 

  769. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    770. 

  770. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    771. 

  771. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    772. 

  772. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    773. 

  773. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    774. 

  774. 	at java.lang.Thread.run(Thread.java:748)
    775. 

  775. 10:38:46.408 [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%22192.168.1.25%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 
    776. 

  776. 10:38:46.408 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    777. 

  777. java.net.ConnectException: Connection refused (Connection refused)
    778. 

  778. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    779. 

  779. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    780. 

  780. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    781. 

  781. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    782. 

  782. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    783. 

  783. 	at java.net.Socket.connect(Socket.java:589)
    784. 

  784. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    785. 

  785. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    786. 

  786. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    787. 

  787. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    788. 

  788. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    789. 

  789. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    790. 

  790. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    791. 

  791. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    792. 

  792. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    793. 

  793. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    794. 

  794. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    795. 

  795. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    796. 

  796. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    797. 

  797. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    798. 

  798. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    799. 

  799. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    800. 

  800. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    801. 

  801. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    802. 

  802. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    803. 

  803. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    804. 

  804. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    805. 

  805. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    806. 

  806. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    807. 

  807. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    808. 

  808. 	at java.lang.Thread.run(Thread.java:748)
    809. 

  809. 10:38:46.408 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    810. 

  810. 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)
    811. 

  811. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    812. 

  812. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    813. 

  813. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    814. 

  814. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    815. 

  815. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    816. 

  816. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    817. 

  817. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    818. 

  818. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    819. 

  819. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    820. 

  820. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    821. 

  821. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    822. 

  822. 	at java.lang.Thread.run(Thread.java:748)
    823. 

  823. 10:38:46.408 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    824. 

  824. 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)
    825. 

  825. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    826. 

  826. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    827. 

  827. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    828. 

  828. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    829. 

  829. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    830. 

  830. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    831. 

  831. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    832. 

  832. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    833. 

  833. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    834. 

  834. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    835. 

  835. 	at java.lang.Thread.run(Thread.java:748)
    836. 

  836. 10:38:51.414 [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%22192.168.1.25%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 
    837. 

  837. 10:38:51.415 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    838. 

  838. java.net.ConnectException: Connection refused (Connection refused)
    839. 

  839. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    840. 

  840. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    841. 

  841. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    842. 

  842. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    843. 

  843. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    844. 

  844. 	at java.net.Socket.connect(Socket.java:589)
    845. 

  845. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    846. 

  846. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    847. 

  847. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    848. 

  848. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    849. 

  849. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    850. 

  850. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    851. 

  851. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    852. 

  852. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    853. 

  853. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    854. 

  854. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    855. 

  855. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    856. 

  856. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    857. 

  857. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    858. 

  858. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    859. 

  859. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    860. 

  860. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    861. 

  861. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    862. 

  862. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    863. 

  863. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    864. 

  864. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    865. 

  865. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    866. 

  866. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    867. 

  867. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    868. 

  868. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    869. 

  869. 	at java.lang.Thread.run(Thread.java:748)
    870. 

  870. 10:38:51.415 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    871. 

  871. 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)
    872. 

  872. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    873. 

  873. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    874. 

  874. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    875. 

  875. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    876. 

  876. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    877. 

  877. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    878. 

  878. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    879. 

  879. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    880. 

  880. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    881. 

  881. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    882. 

  882. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    883. 

  883. 	at java.lang.Thread.run(Thread.java:748)
    884. 

  884. 10:38:51.416 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    885. 

  885. 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)
    886. 

  886. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    887. 

  887. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    888. 

  888. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    889. 

  889. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    890. 

  890. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    891. 

  891. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    892. 

  892. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    893. 

  893. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    894. 

  894. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    895. 

  895. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    896. 

  896. 	at java.lang.Thread.run(Thread.java:748)
    897. 

  897. 10:38:56.421 [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%22192.168.1.25%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 
    898. 

  898. 10:38:56.421 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    899. 

  899. java.net.ConnectException: Connection refused (Connection refused)
    900. 

  900. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    901. 

  901. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    902. 

  902. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    903. 

  903. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    904. 

  904. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    905. 

  905. 	at java.net.Socket.connect(Socket.java:589)
    906. 

  906. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    907. 

  907. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    908. 

  908. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    909. 

  909. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    910. 

  910. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    911. 

  911. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    912. 

  912. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    913. 

  913. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    914. 

  914. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    915. 

  915. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    916. 

  916. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    917. 

  917. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    918. 

  918. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    919. 

  919. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    920. 

  920. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    921. 

  921. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    922. 

  922. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    923. 

  923. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    924. 

  924. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    925. 

  925. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    926. 

  926. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    927. 

  927. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    928. 

  928. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    929. 

  929. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    930. 

  930. 	at java.lang.Thread.run(Thread.java:748)
    931. 

  931. 10:38:56.422 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    932. 

  932. 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)
    933. 

  933. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    934. 

  934. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    935. 

  935. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    936. 

  936. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    937. 

  937. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    938. 

  938. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    939. 

  939. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    940. 

  940. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    941. 

  941. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    942. 

  942. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    943. 

  943. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    944. 

  944. 	at java.lang.Thread.run(Thread.java:748)
    945. 

  945. 10:38:56.422 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    946. 

  946. 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)
    947. 

  947. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    948. 

  948. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    949. 

  949. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    950. 

  950. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    951. 

  951. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    952. 

  952. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    953. 

  953. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    954. 

  954. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    955. 

  955. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    956. 

  956. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    957. 

  957. 	at java.lang.Thread.run(Thread.java:748)
    958. 

  958. 10:39:01.429 [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%22192.168.1.25%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 
    959. 

  959. 10:39:01.432 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    960. 

  960. java.net.ConnectException: Connection refused (Connection refused)
    961. 

  961. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    962. 

  962. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    963. 

  963. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    964. 

  964. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    965. 

  965. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    966. 

  966. 	at java.net.Socket.connect(Socket.java:589)
    967. 

  967. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    968. 

  968. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    969. 

  969. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    970. 

  970. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    971. 

  971. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    972. 

  972. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    973. 

  973. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    974. 

  974. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    975. 

  975. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    976. 

  976. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    977. 

  977. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    978. 

  978. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    979. 

  979. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    980. 

  980. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    981. 

  981. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    982. 

  982. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    983. 

  983. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    984. 

  984. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    985. 

  985. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    986. 

  986. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    987. 

  987. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    988. 

  988. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    989. 

  989. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    990. 

  990. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    991. 

  991. 	at java.lang.Thread.run(Thread.java:748)
    992. 

  992. 10:39:01.432 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    993. 

  993. 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)
    994. 

  994. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    995. 

  995. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    996. 

  996. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    997. 

  997. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    998. 

  998. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    999. 

  999. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1000. 

  1000. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1001. 

  1001. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1002. 

  1002. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1003. 

  1003. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1004. 

  1004. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1005. 

  1005. 	at java.lang.Thread.run(Thread.java:748)
    1006. 

  1006. 10:39:01.433 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1007. 

  1007. 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)
    1008. 

  1008. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1009. 

  1009. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1010. 

  1010. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1011. 

  1011. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1012. 

  1012. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1013. 

  1013. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1014. 

  1014. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1015. 

  1015. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1016. 

  1016. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1017. 

  1017. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1018. 

  1018. 	at java.lang.Thread.run(Thread.java:748)
    1019. 

  1019. 10:39:06.439 [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%22192.168.1.25%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 
    1020. 

  1020. 10:39:06.439 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1021. 

  1021. java.net.ConnectException: Connection refused (Connection refused)
    1022. 

  1022. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1023. 

  1023. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1024. 

  1024. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1025. 

  1025. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1026. 

  1026. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1027. 

  1027. 	at java.net.Socket.connect(Socket.java:589)
    1028. 

  1028. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1029. 

  1029. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1030. 

  1030. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1031. 

  1031. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1032. 

  1032. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1033. 

  1033. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1034. 

  1034. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    1035. 

  1035. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    1036. 

  1036. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    1037. 

  1037. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    1038. 

  1038. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    1039. 

  1039. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    1040. 

  1040. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1041. 

  1041. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1042. 

  1042. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1043. 

  1043. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1044. 

  1044. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1045. 

  1045. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1046. 

  1046. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1047. 

  1047. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1048. 

  1048. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1049. 

  1049. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1050. 

  1050. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1051. 

  1051. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1052. 

  1052. 	at java.lang.Thread.run(Thread.java:748)
    1053. 

  1053. 10:39:06.439 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1054. 

  1054. 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)
    1055. 

  1055. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1056. 

  1056. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1057. 

  1057. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1058. 

  1058. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1059. 

  1059. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1060. 

  1060. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1061. 

  1061. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1062. 

  1062. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1063. 

  1063. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1064. 

  1064. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1065. 

  1065. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1066. 

  1066. 	at java.lang.Thread.run(Thread.java:748)
    1067. 

  1067. 10:39:06.439 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1068. 

  1068. 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)
    1069. 

  1069. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1070. 

  1070. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1071. 

  1071. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1072. 

  1072. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1073. 

  1073. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1074. 

  1074. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1075. 

  1075. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1076. 

  1076. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1077. 

  1077. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1078. 

  1078. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1079. 

  1079. 	at java.lang.Thread.run(Thread.java:748)
    1080. 

  1080. 10:39:10.025 [http-nio-8090-exec-2] INFO  o.a.c.c.C.[.[localhost].[/Bug/api] - Initializing Spring DispatcherServlet 'dispatcherServlet' 
    1081. 

  1081. 10:39:10.026 [http-nio-8090-exec-2] INFO  o.s.web.servlet.DispatcherServlet - Initializing Servlet 'dispatcherServlet' 
    1082. 

  1082. 10:39:10.048 [http-nio-8090-exec-2] INFO  o.s.web.servlet.DispatcherServlet - Completed initialization in 22 ms 
    1083. 

  1083. 10:39:11.444 [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%22192.168.1.25%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 
    1084. 

  1084. 10:39:11.444 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1085. 

  1085. java.net.ConnectException: Connection refused (Connection refused)
    1086. 

  1086. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1087. 

  1087. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1088. 

  1088. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1089. 

  1089. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1090. 

  1090. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1091. 

  1091. 	at java.net.Socket.connect(Socket.java:589)
    1092. 

  1092. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1093. 

  1093. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1094. 

  1094. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1095. 

  1095. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1096. 

  1096. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1097. 

  1097. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1098. 

  1098. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    1099. 

  1099. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    1100. 

  1100. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    1101. 

  1101. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    1102. 

  1102. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    1103. 

  1103. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    1104. 

  1104. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1105. 

  1105. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1106. 

  1106. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1107. 

  1107. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1108. 

  1108. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1109. 

  1109. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1110. 

  1110. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1111. 

  1111. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1112. 

  1112. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1113. 

  1113. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1114. 

  1114. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1115. 

  1115. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1116. 

  1116. 	at java.lang.Thread.run(Thread.java:748)
    1117. 

  1117. 10:39:11.444 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1118. 

  1118. 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)
    1119. 

  1119. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1120. 

  1120. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1121. 

  1121. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1122. 

  1122. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1123. 

  1123. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1124. 

  1124. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1125. 

  1125. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1126. 

  1126. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1127. 

  1127. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1128. 

  1128. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1129. 

  1129. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1130. 

  1130. 	at java.lang.Thread.run(Thread.java:748)
    1131. 

  1131. 10:39:11.444 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1132. 

  1132. 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)
    1133. 

  1133. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1134. 

  1134. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1135. 

  1135. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1136. 

  1136. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1137. 

  1137. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1138. 

  1138. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1139. 

  1139. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1140. 

  1140. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1141. 

  1141. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1142. 

  1142. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1143. 

  1143. 	at java.lang.Thread.run(Thread.java:748)
    1144. 

  1144. 10:39:16.448 [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%22192.168.1.25%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 
    1145. 

  1145. 10:39:16.449 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1146. 

  1146. java.net.ConnectException: Connection refused (Connection refused)
    1147. 

  1147. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1148. 

  1148. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1149. 

  1149. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1150. 

  1150. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1151. 

  1151. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1152. 

  1152. 	at java.net.Socket.connect(Socket.java:589)
    1153. 

  1153. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1154. 

  1154. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1155. 

  1155. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1156. 

  1156. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1157. 

  1157. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1158. 

  1158. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1159. 

  1159. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    1160. 

  1160. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    1161. 

  1161. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    1162. 

  1162. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    1163. 

  1163. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
    1164. 

  1164. 	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
    1165. 

  1165. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
    1166. 

  1166. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1167. 

  1167. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1168. 

  1168. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1169. 

  1169. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1170. 

  1170. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1171. 

  1171. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1172. 

  1172. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1173. 

  1173. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1174. 

  1174. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1175. 

  1175. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1176. 

  1176. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1177. 

  1177. 	at java.lang.Thread.run(Thread.java:748)
    1178. 

  1178. 10:39:16.449 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
    1179. 

  1179. 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)
    1180. 

  1180. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
    1181. 

  1181. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1182. 

  1182. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1183. 

  1183. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1184. 

  1184. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1185. 

  1185. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1186. 

  1186. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1187. 

  1187. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1188. 

  1188. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1189. 

  1189. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1190. 

  1190. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1191. 

  1191. 	at java.lang.Thread.run(Thread.java:748)
    1192. 

  1192. 10:39:16.449 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
    1193. 

  1193. 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)
    1194. 

  1194. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1195. 

  1195. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1196. 

  1196. 	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
    1197. 

  1197. 	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
    1198. 

  1198. 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    1199. 

  1199. 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    1200. 

  1200. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    1201. 

  1201. 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    1202. 

  1202. 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    1203. 

  1203. 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    1204. 

  1204. 	at java.lang.Thread.run(Thread.java:748)
    1205. 

  1205. 10:39:20.170 [Thread-12] INFO  c.a.c.n.r.NacosServiceRegistry - De-registering from Nacos Server now... 
    1206. 

  1206. 10:39:20.171 [Thread-12] INFO  com.alibaba.nacos.client.naming - [BEAT] removing beat: DEFAULT_GROUP@@mooctest-crowdsource-backend:192.168.1.25:8090 from beat map. 
    1207. 

  1207. 10:39:20.171 [Thread-12] 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":"192.168.1.25","ipDeleteTimeout":30000,"metadata":{},"port":8090,"weight":1.0} 
    1208. 

  1208. 10:39:20.172 [Thread-12] 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=192.168.1.25&ephemeral=true&serviceName=DEFAULT_GROUP%40%40mooctest-crowdsource-backend&encoding=UTF-8 from 127.0.0.1 
    1209. 

  1209. 10:39:20.173 [Thread-12] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
    1210. 

  1210. java.net.ConnectException: Connection refused (Connection refused)
    1211. 

  1211. 	at java.net.PlainSocketImpl.socketConnect(Native Method)
    1212. 

  1212. 	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    1213. 

  1213. 	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    1214. 

  1214. 	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    1215. 

  1215. 	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    1216. 

  1216. 	at java.net.Socket.connect(Socket.java:589)
    1217. 

  1217. 	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    1218. 

  1218. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    1219. 

  1219. 	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    1220. 

  1220. 	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    1221. 

  1221. 	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    1222. 

  1222. 	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    1223. 

  1223. 	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    1224. 

  1224. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    1225. 

  1225. 	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    1226. 

  1226. 	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    1227. 

  1227. 	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:89)
    1228. 

  1228. 	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
    1229. 

  1229. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
    1230. 

  1230. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1231. 

  1231. 	at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:205)
    1232. 

  1232. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:244)
    1233. 

  1233. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:231)
    1234. 

  1234. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:221)
    1235. 

  1235. 	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:85)
    1236. 

  1236. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    1237. 

  1237. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    1238. 

  1238. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    1239. 

  1239. 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    1240. 

  1240. 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    1241. 

  1241. 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    1242. 

  1242. 	at java.lang.reflect.Method.invoke(Method.java:498)
    1243. 

  1243. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
    1244. 

  1244. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:321)
    1245. 

  1245. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:156)
    1246. 

  1246. 	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:240)
    1247. 

  1247. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:571)
    1248. 

  1248. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:543)
    1249. 

  1249. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1055)
    1250. 

  1250. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:504)
    1251. 

  1251. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1062)
    1252. 

  1252. 	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1057)
    1253. 

  1253. 	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1026)
    1254. 

  1254. 	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:945)
    1255. 

  1255. 10:39:20.173 [Thread-12] 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. 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.deregisterService(NamingProxy.java:205)
    1261. 

  1261. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:244)
    1262. 

  1262. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:231)
    1263. 

  1263. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:221)
    1264. 

  1264. 	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:85)
    1265. 

  1265. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    1266. 

  1266. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    1267. 

  1267. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    1268. 

  1268. 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    1269. 

  1269. 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    1270. 

  1270. 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    1271. 

  1271. 	at java.lang.reflect.Method.invoke(Method.java:498)
    1272. 

  1272. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
    1273. 

  1273. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:321)
    1274. 

  1274. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:156)
    1275. 

  1275. 	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:240)
    1276. 

  1276. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:571)
    1277. 

  1277. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:543)
    1278. 

  1278. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1055)
    1279. 

  1279. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:504)
    1280. 

  1280. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1062)
    1281. 

  1281. 	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1057)
    1282. 

  1282. 	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1026)
    1283. 

  1283. 	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:945)
    1284. 

  1284. 10:39:20.173 [Thread-12] 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='192.168.1.25', networkInterface='', port=8090, secure=false, accessKey='', secretKey=''}}, 
    1285. 

  1285. 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)
    1286. 

  1286. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
    1287. 

  1287. 	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
    1288. 

  1288. 	at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:205)
    1289. 

  1289. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:244)
    1290. 

  1290. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:231)
    1291. 

  1291. 	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:221)
    1292. 

  1292. 	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:85)
    1293. 

  1293. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
    1294. 

  1294. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
    1295. 

  1295. 	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
    1296. 

  1296. 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    1297. 

  1297. 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    1298. 

  1298. 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    1299. 

  1299. 	at java.lang.reflect.Method.invoke(Method.java:498)
    1300. 

  1300. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
    1301. 

  1301. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:321)
    1302. 

  1302. 	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:156)
    1303. 

  1303. 	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:240)
    1304. 

  1304. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:571)
    1305. 

  1305. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:543)
    1306. 

  1306. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1055)
    1307. 

  1307. 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:504)
    1308. 

  1308. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1062)
    1309. 

  1309. 	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1057)
    1310. 

  1310. 	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1026)
    1311. 

  1311. 	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:945)
    1312. 

  1312. 10:39:20.173 [Thread-12] INFO  c.a.c.n.r.NacosServiceRegistry - De-registration finished. 
    1313. 

  1313. 10:39:20.173 [Thread-12] INFO  o.s.s.c.ThreadPoolTaskExecutor - Shutting down ExecutorService 'applicationTaskExecutor' 
    1314. 

  1314. 10:39:20.182 [Thread-12] INFO  org.mongodb.driver.connection - Closed connection [connectionId{localValue:2, serverValue:10}] to localhost:27017 because the pool has been closed. 
    1315.