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https://issues.apache.org/jira/browse/ZOOKEEPER-988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12994367#comment-12994367
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Vishal K commented on ZOOKEEPER-988:
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Hi Xiawei,
As Mahadev mentioned, can you describe the problem in detail and how to
reproduce it? Also, please attach zookeeper.log and zoo.cfg from all the nodes.
> ZK server hang on leader election
> ---------------------------------
>
> Key: ZOOKEEPER-988
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-988
> Project: ZooKeeper
> Issue Type: Bug
> Components: leaderElection
> Affects Versions: 3.3.2
> Reporter: Xiaowei Jiang
>
> org.apache.zookeeper.server.quorum.QuorumCnxManager$SendWorker.run thread
> exited unexpected, so the server hang on leader election.
> QuorumPeer:/0.0.0.0:2181:
> [1] sun.misc.Unsafe.park (native method)
> [2] java.util.concurrent.locks.LockSupport.parkNanos (LockSupport.java:198)
> [3]
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos
> (AbstractQueuedSynchronizer.java:1,963)
> [4] java.util.concurrent.LinkedBlockingQueue.poll
> (LinkedBlockingQueue.java:395)
> [5] org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader
> (FastLeaderElection.java:677)
> [6] org.apache.zookeeper.server.quorum.QuorumPeer.run (QuorumPeer.java:621)
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