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https://issues.apache.org/jira/browse/ZOOKEEPER-987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mahadev konar resolved ZOOKEEPER-987.
-------------------------------------

    Resolution: Not A Problem

This is not a fatal error. This is just the log saying that it was expecting 
some transaction but a new leader transaction came in.


> Fatal error after reelection
> ----------------------------
>
>                 Key: ZOOKEEPER-987
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-987
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: server
>    Affects Versions: 3.3.2
>            Reporter: Xiaowei Jiang
>
> ZK server hit fatal error after leader re-election:
> 2011-01-17 14:38:29,709 - DEBUG [WorkerSender Thread:QuorumCnxManager@384] - 
> There is a connection already for server 4
> 2011-01-17 14:38:30,111 - DEBUG [WorkerReceiver 
> Thread:FastLeaderElection$Messenger$WorkerReceiver@214] - Receive new 
> notification message. My id = 1
> 2011-01-17 14:38:30,111 - INFO  [WorkerReceiver 
> Thread:FastLeaderElection@496] - Notification: 4 (n.leader), 8589936845 
> (n.zxid), 6 (n.round), LOOKING (n.state), 4 (n.sid), FOLLOWING (my state)
> 2011-01-17 14:38:30,111 - DEBUG [WorkerReceiver 
> Thread:FastLeaderElection$Messenger$WorkerReceiver@288] - Sending new 
> notification. My id =  1, Recipient = 4
> 2011-01-17 14:38:30,112 - DEBUG [WorkerSender Thread:QuorumCnxManager@384] - 
> There is a connection already for server 4
> 2011-01-17 14:38:34,115 - INFO  [QuorumPeer:/0.0.0.0:2181:Learner@315] - 
> Setting leader epoch 3
> 2011-01-17 14:38:34,117 - WARN  [QuorumPeer:/0.0.0.0:2181:Follower@116] - Got 
> zxid 0x2000008ce expected 0x1
> 2011-01-17 14:38:34,117 - INFO  [QuorumPeer:/0.0.0.0:2181:FileTxnSnapLog@208] 
> - Snapshotting: 300000000
> 2011-01-17 14:38:37,346 - WARN  [QuorumPeer:/0.0.0.0:2181:Follower@116] - Got 
> zxid 0x300000001 expected 0x2000008cf
> 2011-01-17 14:38:37,988 - FATAL 
> [QuorumPeer:/0.0.0.0:2181:FollowerZooKeeperServer@112] - Committing zxid 
> 0x300000001 but next pending txn 0x2000008ce

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