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) 
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 
10:36:26.800 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:host.name=192.168.1.25 
10:36:26.800 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.version=1.8.0_144 
10:36:26.800 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.vendor=Oracle Corporation 
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 
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 
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:. 
10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.io.tmpdir=/var/folders/nc/l9fhpfxn1z59qnkh68zb5dz40000gn/T/ 
10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.compiler=<NA> 
10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.name=Mac OS X 
10:36:26.801 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.arch=x86_64 
10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.version=10.14.6 
10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.name=duanmengyang 
10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.home=/Users/duanmengyang 
10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.dir=/Users/duanmengyang/IdeaProjects/crowdsource-backend 
10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.free=55MB 
10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.max=1820MB 
10:36:26.802 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.total=117MB 
10:36:26.839 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:36:26.861 [main] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:36:26.898 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:36:27.023 [main-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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'}]} 
10:36:43.186 [main] INFO  edu.nju.BugApplication - The following profiles are active: dev 
10:36:43.747 [main] INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Bootstrapping Spring Data repositories in DEFAULT mode. 
10:36:43.764 [main] INFO  o.s.d.r.c.RepositoryConfigurationDelegate - Finished Spring Data repository scanning in 15ms. Found 0 repository interfaces. 
10:36:43.904 [main] INFO  o.s.c.context.scope.GenericScope - BeanFactory id=cc66e5ed-bc9a-3afa-bee4-8769305f20f9 
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) 
10:36:44.433 [main] INFO  o.s.b.w.e.tomcat.TomcatWebServer - Tomcat initialized with port(s): 8090 (http) 
10:36:44.454 [main] INFO  o.a.catalina.core.StandardService - Starting service [Tomcat] 
10:36:44.454 [main] INFO  o.a.catalina.core.StandardEngine - Starting Servlet engine: [Apache Tomcat/9.0.17] 
10:36:44.557 [main] INFO  o.a.c.c.C.[.[localhost].[/Bug/api] - Initializing Spring embedded WebApplicationContext 
10:36:44.557 [main] INFO  o.s.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 1360 ms 
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} 
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 
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} 
10:36:50.270 [main] INFO  org.mongodb.driver.connection - Opened connection [connectionId{localValue:2, serverValue:10}] to localhost:27017 
10:36:50.522 [main] WARN  c.n.c.s.URLConfigurationSource - No URLs will be polled as dynamic configuration sources. 
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. 
10:36:50.528 [main] WARN  c.n.c.s.URLConfigurationSource - No URLs will be polled as dynamic configuration sources. 
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. 
10:36:50.707 [main] INFO  o.s.s.c.ThreadPoolTaskExecutor - Initializing ExecutorService 'applicationTaskExecutor' 
10:36:50.891 [main] INFO  o.s.s.c.ThreadPoolTaskScheduler - Initializing ExecutorService 
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' 
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=''}}, 
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)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.registerService(NamingProxy.java:188)
	at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:205)
	at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:184)
	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.register(NacosServiceRegistry.java:61)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.register(AbstractAutoServiceRegistration.java:239)
	at com.alibaba.cloud.nacos.registry.NacosAutoServiceRegistration.register(NacosAutoServiceRegistration.java:74)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.start(AbstractAutoServiceRegistration.java:138)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.bind(AbstractAutoServiceRegistration.java:101)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:88)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:47)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:402)
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:359)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:166)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
	at edu.nju.BugApplication.main(BugApplication.java:10)
10:36:51.309 [main] INFO  edu.nju.BugApplication - Started BugApplication in 45.483 seconds (JVM running for 56.287) 
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) 
10:36:51.372 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:36:51.373 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:36:51.373 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:36:52.891 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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'}]} 
10:37:02.398 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:37:02.405 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 11.09 seconds (JVM running for 67.383) 
10:37:02.406 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:37:02.486 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b3 closed 
10:37:02.486 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b3 
10:37:02.507 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
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) 
10:37:02.555 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:37:02.555 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:37:02.556 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:37:02.699 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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'}]} 
10:37:10.508 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:37:10.514 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 8.006 seconds (JVM running for 75.492) 
10:37:10.514 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:37:10.634 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b4 closed 
10:37:10.634 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b4 
10:37:10.655 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
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) 
10:37:10.721 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:37:10.722 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:37:10.722 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:37:10.768 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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 
10:37:11.326 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:11.326 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:11.326 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:12.259 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
10:37:17.319 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:37:17.329 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 6.674 seconds (JVM running for 82.307) 
10:37:17.329 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:37:17.346 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b5 
10:37:17.346 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b5 closed 
10:37:17.369 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
10:37:17.413 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$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) 
10:37:17.427 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:37:17.428 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:37:17.428 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:37:17.475 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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'}]} 
10:37:23.125 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:37:23.134 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 5.764 seconds (JVM running for 88.117) 
10:37:23.134 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:37:23.152 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b6 
10:37:23.152 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b6 closed 
10:37:23.172 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
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) 
10:37:23.260 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:37:23.261 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:37:23.261 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:37:23.762 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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'}]} 
10:37:29.221 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:37:29.231 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 6.058 seconds (JVM running for 94.22) 
10:37:29.232 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:37:29.347 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b7 closed 
10:37:29.347 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b7 
10:37:29.362 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
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) 
10:37:29.423 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:37:29.424 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:37:29.424 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:37:29.678 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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 
10:37:31.335 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:31.335 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:31.336 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
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 
10:37:36.336 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:36.336 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:36.336 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:38.839 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
10:37:43.860 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:37:43.867 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 14.503 seconds (JVM running for 108.862) 
10:37:43.867 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:37:43.920 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b8 closed 
10:37:43.920 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b8 
10:37:43.938 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
10:37:43.982 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$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) 
10:37:43.994 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:37:43.994 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:37:43.995 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:37:44.078 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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'}]} 
10:37:49.672 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:37:49.679 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 5.739 seconds (JVM running for 114.675) 
10:37:49.679 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:37:49.738 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03b9 closed 
10:37:49.739 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03b9 
10:37:49.759 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
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) 
10:37:49.823 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:37:49.826 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:37:49.830 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:37:49.978 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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 
10:37:51.348 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:51.348 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:51.348 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:37:54.139 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
10:37:59.164 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:37:59.177 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 9.417 seconds (JVM running for 124.175) 
10:37:59.177 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:37:59.389 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03ba closed 
10:37:59.389 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03ba 
10:37:59.405 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
10:37:59.437 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$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) 
10:37:59.448 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:37:59.449 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:37:59.449 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:37:59.644 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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 
10:38:01.358 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:01.358 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:01.358 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:04.023 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
10:38:09.041 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:38:09.053 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 9.647 seconds (JVM running for 134.053) 
10:38:09.054 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:38:09.168 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03bb closed 
10:38:09.168 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03bb 
10:38:09.180 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
10:38:09.249 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$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) 
10:38:09.268 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:38:09.268 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:38:09.269 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:38:09.411 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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 
10:38:11.368 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:11.368 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:11.368 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:12.246 [Curator-TreeCache-0] INFO  o.s.c.b.c.PropertySourceBootstrapConfiguration - Located property source: CompositePropertySource {name='zookeeper', propertySources=[ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend,dev'}, ZookeeperPropertySource {name='/config/mooctest-crowdsource-backend'}, ZookeeperPropertySource {name='/config/application,dev'}, ZookeeperPropertySource {name='/config/application'}]} 
10:38:17.271 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:38:17.279 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 8.099 seconds (JVM running for 142.279) 
10:38:17.280 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:38:17.343 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03bc closed 
10:38:17.343 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03bc 
10:38:17.364 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
10:38:17.450 [Curator-TreeCache-0] INFO  o.s.c.s.PostProcessorRegistrationDelegate$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) 
10:38:17.476 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:38:17.477 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:38:17.478 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:38:17.582 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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'}]} 
10:38:24.351 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:38:24.360 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 6.994 seconds (JVM running for 149.36) 
10:38:24.361 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:38:24.380 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03bd closed 
10:38:24.380 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03bd 
10:38:24.396 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
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) 
10:38:24.470 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:38:24.470 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:38:24.471 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:38:24.542 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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'}]} 
10:38:30.040 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:38:30.054 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 5.657 seconds (JVM running for 155.054) 
10:38:30.056 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:38:30.073 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03be 
10:38:30.073 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03be closed 
10:38:30.097 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
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) 
10:38:30.147 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting 
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 
10:38:30.147 [Curator-TreeCache-0] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes 
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) 
10:38:30.147 [Curator-TreeCache-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema 
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 
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 
10:38:30.238 [Curator-TreeCache-0-EventThread] INFO  o.a.c.f.s.ConnectionStateManager - State change: CONNECTED 
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'}]} 
10:38:36.024 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - The following profiles are active: dev 
10:38:36.033 [Curator-TreeCache-0] INFO  o.s.boot.SpringApplication - Started application in 5.934 seconds (JVM running for 161.034) 
10:38:36.034 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting 
10:38:36.086 [Curator-TreeCache-0] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x17559ef9a3f03bf closed 
10:38:36.086 [Curator-TreeCache-0-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x17559ef9a3f03bf 
10:38:36.108 [Curator-TreeCache-0] INFO  o.s.c.e.event.RefreshEventListener - Refresh keys changed: [] 
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 
10:38:36.395 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:36.395 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:36.396 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
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 
10:38:41.401 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:41.402 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:41.402 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
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 
10:38:46.408 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:46.408 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:46.408 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
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 
10:38:51.415 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:51.415 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:51.416 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
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 
10:38:56.421 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:56.422 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:38:56.422 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
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 
10:39:01.432 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:01.432 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:01.433 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
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 
10:39:06.439 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:06.439 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:06.439 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:10.025 [http-nio-8090-exec-2] INFO  o.a.c.c.C.[.[localhost].[/Bug/api] - Initializing Spring DispatcherServlet 'dispatcherServlet' 
10:39:10.026 [http-nio-8090-exec-2] INFO  o.s.web.servlet.DispatcherServlet - Initializing Servlet 'dispatcherServlet' 
10:39:10.048 [http-nio-8090-exec-2] INFO  o.s.web.servlet.DispatcherServlet - Completed initialization in 22 ms 
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 
10:39:11.444 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:11.444 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:11.444 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
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 
10:39:16.449 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316)
	at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:16.449 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:16.449 [com.alibaba.nacos.naming.beat.sender] ERROR com.alibaba.nacos.client.naming - [CLIENT-BEAT] failed to send beat: {"cluster":"DEFAULT","ip":"192.168.1.25","metadata":{"preserved.register.source":"SPRING_CLOUD"},"period":5000,"port":8090,"scheduled":false,"serviceName":"DEFAULT_GROUP@@mooctest-crowdsource-backend","stopped":false,"weight":1.0} 
java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance/beat after all servers([127.0.0.1:8848]) tried: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance/beat. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.sendBeat(NamingProxy.java:309)
	at com.alibaba.nacos.client.naming.beat.BeatReactor$BeatTask.run(BeatReactor.java:92)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
10:39:20.170 [Thread-12] INFO  c.a.c.n.r.NacosServiceRegistry - De-registering from Nacos Server now... 
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. 
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} 
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 
10:39:20.173 [Thread-12] ERROR com.alibaba.nacos.client.naming - [NA] failed to request  
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
	at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:89)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:410)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:205)
	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:244)
	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:231)
	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:221)
	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:85)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:321)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:156)
	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:240)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:571)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:543)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1055)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:504)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1062)
	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1057)
	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1026)
	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:945)
10:39:20.173 [Thread-12] ERROR com.alibaba.nacos.client.naming - request 127.0.0.1:8848 failed. 
com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance. code:500 msg: java.net.ConnectException: Connection refused (Connection refused)
	at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:424)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:451)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:205)
	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:244)
	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:231)
	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:221)
	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:85)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:321)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:156)
	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:240)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:571)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:543)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1055)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:504)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1062)
	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1057)
	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1026)
	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:945)
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=''}}, 
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)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:464)
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:386)
	at com.alibaba.nacos.client.naming.net.NamingProxy.deregisterService(NamingProxy.java:205)
	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:244)
	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:231)
	at com.alibaba.nacos.client.naming.NacosNamingService.deregisterInstance(NacosNamingService.java:221)
	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.deregister(NacosServiceRegistry.java:85)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.deregister(AbstractAutoServiceRegistration.java:256)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.stop(AbstractAutoServiceRegistration.java:271)
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.destroy(AbstractAutoServiceRegistration.java:208)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeDestroyMethods(InitDestroyAnnotationBeanPostProcessor.java:321)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeDestruction(InitDestroyAnnotationBeanPostProcessor.java:156)
	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:240)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:571)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:543)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:1055)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:504)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:1062)
	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1057)
	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1026)
	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:945)
10:39:20.173 [Thread-12] INFO  c.a.c.n.r.NacosServiceRegistry - De-registration finished. 
10:39:20.173 [Thread-12] INFO  o.s.s.c.ThreadPoolTaskExecutor - Shutting down ExecutorService 'applicationTaskExecutor' 
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.