Zookeeper connection failed

依赖

	<dependency>
		<groupId>org.apache.shardingsphere.elasticjob</groupId>
		<artifactId>elasticjob-lite-spring-boot-starter</artifactId>
		<version>3.0.0-alpha</version>
	</dependency>

zookeeper version

3.6.2

Exception description

`org.apache.zookeeper.ClientCnxn$EndOfStreamException: Unable to read additional data from server sessionid 0x10089de5a960005, likely server has closed socket at org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:75) ~[zookeeper-3.6.0.jar:3.6.0] at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:348) ~[zookeeper-3.6.0.jar:3.6.0] at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1262) ~[zookeeper-3.6.0.jar:3.6.0]

2020-12-16 13:47:42.827 INFO 13164 — [ain-EventThread] org.apache.zookeeper.ClientCnxn : EventThread shut down for session: 0x10089de5a960005 2020-12-16 13:47:42.827 INFO 13164 — [ restartedMain] org.apache.zookeeper.ZooKeeper : Session: 0x10089de5a960005 closed 2020-12-16 13:47:42.834 WARN 13164 — [ restartedMain] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘zookeeperRegistryCenter’ defined in class path resource [org/apache/shardingsphere/elasticjob/lite/spring/boot/reg/ElasticJobRegistryCenterConfiguration.class]: Invocation of init method failed; nested exception is org.apache.shardingsphere.elasticjob.reg.exception.RegException: org.apache.zookeeper.KeeperException$OperationTimeoutException: KeeperErrorCode = OperationTimeout 2020-12-16 13:47:42.847 INFO 13164 — [ restartedMain] ConditionEvaluationReportLoggingListener :

Error starting ApplicationContext. To display the conditions report re-run your application with ‘debug’ enabled. 2020-12-16 13:47:42.858 ERROR 13164 — [ restartedMain] o.s.boot.SpringApplication : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘zookeeperRegistryCenter’ defined in class path resource [org/apache/shardingsphere/elasticjob/lite/spring/boot/reg/ElasticJobRegistryCenterConfiguration.class]: Invocation of init method failed; nested exception is org.apache.shardingsphere.elasticjob.reg.exception.RegException: org.apache.zookeeper.KeeperException$OperationTimeoutException: KeeperErrorCode = OperationTimeout at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1794) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) [spring-boot-2.3.3.RELEASE.jar:2.3.3.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.3.3.RELEASE.jar:2.3.3.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.3.3.RELEASE.jar:2.3.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.3.3.RELEASE.jar:2.3.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.3.RELEASE.jar:2.3.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.3.RELEASE.jar:2.3.3.RELEASE] at com.example.elasticjob.ElasticjobApplication.main(ElasticjobApplication.java:10) [classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.3.3.RELEASE.jar:2.3.3.RELEASE] Caused by: org.apache.shardingsphere.elasticjob.reg.exception.RegException: org.apache.zookeeper.KeeperException$OperationTimeoutException: KeeperErrorCode = OperationTimeout at org.apache.shardingsphere.elasticjob.reg.exception.RegExceptionHandler.handleException(RegExceptionHandler.java:48) ~[elasticjob-registry-center-3.0.0-alpha.jar:3.0.0-alpha] at org.apache.shardingsphere.elasticjob.reg.zookeeper.ZookeeperRegistryCenter.init(ZookeeperRegistryCenter.java:107) ~[elasticjob-registry-center-3.0.0-alpha.jar:3.0.0-alpha] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1920) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1862) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1790) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] … 21 common frames omitted Caused by: org.apache.zookeeper.KeeperException$OperationTimeoutException: KeeperErrorCode = OperationTimeout at org.apache.shardingsphere.elasticjob.reg.zookeeper.ZookeeperRegistryCenter.init(ZookeeperRegistryCenter.java:102) ~[elasticjob-registry-center-3.0.0-alpha.jar:3.0.0-alpha] … 28 common frames omitted`

[lsiuf]

elasticjob version: 3.0.0-beta zookeeper version: 3.6.2 curator version: 5.1.0

I also encountered the same problem, now increase the following configuration value temporarily to solve this problem. elasticjob.reg-center.max-retries: 10

[TeslaCN]

It seems this issue has already done, I’m closing this issue.