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https://issues.apache.org/jira/browse/CURATOR-538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17836070#comment-17836070
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Emre Kartoglu commented on CURATOR-538:
---------------------------------------
The affected versions mentioned on this ticket (4.0.1, 4.2.0) appear to be
wrong. For instance the 5.2.0 branch still has the issue. The issue appears to
be fixed on the 5.4.0 branch.
> Background exception was not retry-able or retry gave up
> --------------------------------------------------------
>
> Key: CURATOR-538
> URL: https://issues.apache.org/jira/browse/CURATOR-538
> Project: Apache Curator
> Issue Type: Bug
> Components: Framework
> Affects Versions: 4.0.1, 4.2.0
> Reporter: imic
> Priority: Critical
> Attachments: 22.png
>
>
>
> error log:
> {code:java}
> //err code is here
> 2019-08-21 14:24:30.654 0.0.0.0:30901 INFO 45964 --- [e-1-EventThread]
> org.apache.zookeeper.ClientCnxn : EventThread shut down for session:
> 0x10072ab8a8001b12019-08-21 14:24:30.654 0.0.0.0:30901 INFO 45964 ---
> [e-1-EventThread] org.apache.zookeeper.ClientCnxn : EventThread shut
> down for session: 0x10072ab8a8001b12019-08-21 14:24:30.655 0.0.0.0:30901
> ERROR 45964 --- [e-1-EventThread] o.a.c.f.imps.CuratorFrameworkImpl
> : Background exception was not retry-able or retry gave up
> java.lang.NullPointerException: null at
> org.apache.curator.framework.imps.EnsembleTracker.configToConnectionString(EnsembleTracker.java:179)
> at
> org.apache.curator.framework.imps.EnsembleTracker.processConfigData(EnsembleTracker.java:200)
> at
> org.apache.curator.framework.imps.EnsembleTracker.access$300(EnsembleTracker.java:50)
> at
> org.apache.curator.framework.imps.EnsembleTracker$2.processResult(EnsembleTracker.java:144)
> at
> org.apache.curator.framework.imps.CuratorFrameworkImpl.sendToBackgroundCallback(CuratorFrameworkImpl.java:865)
> at
> org.apache.curator.framework.imps.CuratorFrameworkImpl.processBackgroundOperation(CuratorFrameworkImpl.java:635)
> at
> org.apache.curator.framework.imps.WatcherRemovalFacade.processBackgroundOperation(WatcherRemovalFacade.java:152)
> at
> org.apache.curator.framework.imps.GetConfigBuilderImpl$2.processResult(GetConfigBuilderImpl.java:222)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:587)
> at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:499)
> 2019-08-21 14:24:30.655 0.0.0.0:30901 INFO 45964 --- [e-1-EventThread]
> o.a.c.framework.imps.EnsembleTracker : New config event received:
> {server.1=zookeeper-0.zk-headless-service.default.svc.cluster.local:2888:3888:participant;0.0.0.0:2181,
> version=b00000000,
> server.3=zookeeper-2.zk-headless-service.default.svc.cluster.local:2888:3888:participant;0.0.0.0:2181,
>
> server.2=zookeeper-1.zk-headless-service.default.svc.cluster.local:2888:3888:participant;0.0.0.0:2181}2019-08-21
> 14:24:30.656 0.0.0.0:30901 ERROR 45964 --- [e-1-EventThread]
> o.a.c.f.imps.CuratorFrameworkImpl : Background exception was not
> retry-able or retry gave up
> java.lang.NullPointerException: null at
> org.apache.curator.framework.imps.EnsembleTracker.configToConnectionString(EnsembleTracker.java:179)
> at
> org.apache.curator.framework.imps.EnsembleTracker.processConfigData(EnsembleTracker.java:200)
> at
> org.apache.curator.framework.imps.EnsembleTracker.access$300(EnsembleTracker.java:50)
> at
> org.apache.curator.framework.imps.EnsembleTracker$2.processResult(EnsembleTracker.java:144)
> at
> org.apache.curator.framework.imps.CuratorFrameworkImpl.sendToBackgroundCallback(CuratorFrameworkImpl.java:865)
> at
> org.apache.curator.framework.imps.CuratorFrameworkImpl.processBackgroundOperation(CuratorFrameworkImpl.java:635)
> at
> org.apache.curator.framework.imps.WatcherRemovalFacade.processBackgroundOperation(WatcherRemovalFacade.java:152)
> at
> org.apache.curator.framework.imps.GetConfigBuilderImpl$2.processResult(GetConfigBuilderImpl.java:222)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:587)
> at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:499)
> {code}
>
> I use kubernates as registor, envirment is ubuntu18.04 + spring boot 2.x
> and curator is 4.0.1(spring-cloud-starter-zookeeper-config), when i debug
> the project, curator framework throw NullPointerException.
> I debuged it , found EnsembleTracker.java(line 179)
> server.addr.getAddress() is null! debug info can be found at attachment!
>
> QuorumVerifier is
> {code:java}
> server.1=zookeeper-0.zk-headless-service.default.svc.cluster.local:2888:3888:participant;0.0.0.0:2181
> server.2=zookeeper-1.zk-headless-service.default.svc.cluster.local:2888:3888:participant;0.0.0.0:2181
> server.3=zookeeper-2.zk-headless-service.default.svc.cluster.local:2888:3888:participant;0.0.0.0:2181
> version=b00000000{code}
>
>
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