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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CURATOR-126) IllegalStateException in performBackgroundOperation during close
Date Mon, 28 Jul 2014 21:01:39 GMT

    [ https://issues.apache.org/jira/browse/CURATOR-126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14076842#comment-14076842
] 

ASF GitHub Bot commented on CURATOR-126:
----------------------------------------

Github user Randgalt commented on a diff in the pull request:

    https://github.com/apache/curator/pull/23#discussion_r15490376
  
    --- Diff: curator-framework/src/main/java/org/apache/curator/framework/CuratorFrameworkFactory.java
---
    @@ -239,6 +241,16 @@ public Builder connectionTimeoutMs(int connectionTimeoutMs)
             }
     
             /**
    +         * @param closeWaitMs time to wait during close to join background threads
    --- End diff --
    
    Sorry to be pedantic, but this would be better named "maxCloseWaitMs". 


> IllegalStateException in performBackgroundOperation during close
> ----------------------------------------------------------------
>
>                 Key: CURATOR-126
>                 URL: https://issues.apache.org/jira/browse/CURATOR-126
>             Project: Apache Curator
>          Issue Type: Bug
>          Components: Framework
>    Affects Versions: 2.5.0
>            Reporter: Scott Blum
>            Assignee: Cameron McKenzie
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> {code}
> [CuratorFramework-0] ERROR org.apache.curator.framework.imps.CuratorFrameworkImpl  -
Background exception was not retry-able or retry gave up
> java.lang.IllegalStateException: Client is not started
> 	at com.google.common.base.Preconditions.checkState(Preconditions.java:176)
> 	at org.apache.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:113)
> 	at org.apache.curator.framework.imps.CuratorFrameworkImpl.performBackgroundOperation(CuratorFrameworkImpl.java:807)
> 	at org.apache.curator.framework.imps.CuratorFrameworkImpl.backgroundOperationsLoop(CuratorFrameworkImpl.java:793)
> 	at org.apache.curator.framework.imps.CuratorFrameworkImpl.access$400(CuratorFrameworkImpl.java:57)
> 	at org.apache.curator.framework.imps.CuratorFrameworkImpl$4.call(CuratorFrameworkImpl.java:275)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:744)
> {code}
> I see this sometimes during test runs; I believe this happens because CuratorZookeeperClient.started
gets set to false during shutdown, but the backgroundOperation loop can still be running since
shutting down the backgroundOperation loop is inherently racy.



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