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https://issues.apache.org/jira/browse/NIFI-2337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15398612#comment-15398612
]
ASF subversion and git services commented on NIFI-2337:
-------------------------------------------------------
Commit 3a153d3a486bf201d2bc755f12701e9b7230d5e0 in nifi's branch
refs/heads/master from [~markap14]
[ https://git-wip-us.apache.org/repos/asf?p=nifi.git;h=3a153d3 ]
NIFI-2337 This closes #731. Turn off logging for
org.apache.curator.framework.recipes.leader.LeaderSelector since it logs only a
single error, and that error is a but in Curator
> IllegalMonitorStateException when disconnecting node
> ----------------------------------------------------
>
> Key: NIFI-2337
> URL: https://issues.apache.org/jira/browse/NIFI-2337
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.0.0
> Reporter: Mark Payne
> Assignee: Joseph Witt
> Fix For: 1.0.0
>
>
> When a node is disconnected from the cluster, it often logs a stacktrace
> similar to:
> 2016-07-20 20:20:47,814 ERROR [Leader Election Notification Thread-1]
> o.a.c.f.recipes.leader.LeaderSelector The leader threw an exception
> java.lang.IllegalMonitorStateException: You do not own the lock:
> /leaders/Cluster Coordinator
> at
> org.apache.curator.framework.recipes.locks.InterProcessMutex.release(InterProcessMutex.java:140)
> ~[curator-recipes-2.10.0.jar:na]
> at
> org.apache.curator.framework.recipes.leader.LeaderSelector.doWork(LeaderSelector.java:425)
> [curator-recipes-2.10.0.jar:na]
> at
> org.apache.curator.framework.recipes.leader.LeaderSelector.doWorkLoop(LeaderSelector.java:441)
> [curator-recipes-2.10.0.jar:na]
> at
> org.apache.curator.framework.recipes.leader.LeaderSelector.access$100(LeaderSelector.java:64)
> [curator-recipes-2.10.0.jar:na]
> at
> org.apache.curator.framework.recipes.leader.LeaderSelector$2.call(LeaderSelector.java:245)
> [curator-recipes-2.10.0.jar:na]
> at
> org.apache.curator.framework.recipes.leader.LeaderSelector$2.call(LeaderSelector.java:239)
> [curator-recipes-2.10.0.jar:na]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [na:1.8.0_74]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_74]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [na:1.8.0_74]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_74]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [na:1.8.0_74]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> [na:1.8.0_74]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> [na:1.8.0_74]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [na:1.8.0_74]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [na:1.8.0_74]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_74]
> This error, I believe, is harmless but is alarming and should be addressed.
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