[ZOOKEEPER-988] ZK server hang on leader election

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Incomplete
• Affects Version/s: 3.3.2
• Component/s: leaderElection
• Assignee: Unassigned
• Reporter: Xiaowei Jiang
• Created: 14/Feb/11 00:13
• Updated: 14/Oct/13 23:52
• Resolved: 14/Oct/13 23:52

Description

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)