org.apache.zookeeper.KeeperException$UnimplementedException: KeeperErrorCode = Unimplemented for xxx

Spring Cloud 整合 Zookeeper 启动报错

org.apache.zookeeper.KeeperException$UnimplementedException: KeeperErrorCode = Unimplemented for /services/cloud-provider-payment/bf0a2591-9b00-4644-97da-c45610bc404e
    at org.apache.zookeeper.KeeperException.create(KeeperException.java:103) ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
    at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
    at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1525) ~[zookeeper-3.5.3-beta.jar:3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60]
    at org.apache.curator.framework.imps.CreateBuilderImpl$17.call(CreateBuilderImpl.java:1181) ~[curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.framework.imps.CreateBuilderImpl$17.call(CreateBuilderImpl.java:1158) ~[curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.connection.StandardConnectionHandlingPolicy.callWithRetry(StandardConnectionHandlingPolicy.java:64) ~[curator-client-4.0.1.jar:na]
    at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:100) ~[curator-client-4.0.1.jar:na]
    at org.apache.curator.framework.imps.CreateBuilderImpl.pathInForeground(CreateBuilderImpl.java:1155) ~[curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.framework.imps.CreateBuilderImpl.protectedPathInForeground(CreateBuilderImpl.java:605) ~[curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:595) ~[curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:49) ~[curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl.internalRegisterService(ServiceDiscoveryImpl.java:236) ~[curator-x-discovery-4.0.1.jar:na]
    at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl.reRegisterServices(ServiceDiscoveryImpl.java:456) ~[curator-x-discovery-4.0.1.jar:na]
    at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl.access$100(ServiceDiscoveryImpl.java:58) ~[curator-x-discovery-4.0.1.jar:na]
    at org.apache.curator.x.discovery.details.ServiceDiscoveryImpl$1.stateChanged(ServiceDiscoveryImpl.java:78) ~[curator-x-discovery-4.0.1.jar:na]
    at org.apache.curator.framework.state.ConnectionStateManager$2.apply(ConnectionStateManager.java:274) [curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.framework.state.ConnectionStateManager$2.apply(ConnectionStateManager.java:270) [curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:93) [curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.shaded.com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:435) [curator-client-4.0.1.jar:na]
    at org.apache.curator.framework.listen.ListenerContainer.forEach(ListenerContainer.java:85) [curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.framework.state.ConnectionStateManager.processEvents(ConnectionStateManager.java:268) [curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.framework.state.ConnectionStateManager.access$000(ConnectionStateManager.java:44) [curator-framework-4.0.1.jar:4.0.1]
    at org.apache.curator.framework.state.ConnectionStateManager$1.call(ConnectionStateManager.java:120) [curator-framework-4.0.1.jar:4.0.1]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_65]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_65]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_65]
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_65]

 

错误原因

由错误信息可以看得到，SpringCloud 整合 Zookeeper 的 jar 中，自带的是3.5.3版本的Zookeeper，在IDEA中看一下依赖：

果然如此，我使用的 zookeeper-3.4.10 搭建的集群，这里是因为和SpringCloud包中自带的zk冲突了。

解决思路

排除 SpringCloud 中的 zk 依赖，手动添加 3.4.10 zk 依赖

    org.springframework.cloud
    spring-cloud-starter-zookeeper-discovery
    
    
        
            org.apache.zookeeper
            zookeeper
        
    



    org.apache.zookeeper
    zookeeper
    3.4.10
    
    
        
            org.slf4j
            slf4j-api
        
        
            org.slf4j
            slf4j-log4j12
        
        
            log4j
            log4j
        
    

问题解决