[jira] [Created] (CURATOR-126) IllegalStateException in performBackgroundOperation during close

["Scott Blum (JIRA)" <ji...@apache.org>]

Scott Blum created CURATOR-126:
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             Summary: 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


{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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