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https://issues.apache.org/jira/browse/ZOOKEEPER-1453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13409500#comment-13409500
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Marshall McMullen commented on ZOOKEEPER-1453:
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Just wanted to confirm that this was indeed the problem. We use zookeeper in an
embedded manner so our application code creates the myid file programatically
when we start zookeeper. We now know there is a bug in how it's doing that. I
can't believe how much time was wasted on such a simple configuration problem.
So thankful to Flavio and everyone else here for helping me sort that out.
Given how fatal this was, it might have been useful if ZK could have detected
multiple servers with the same ID and given a more helpful error message.
In any event I agree with Bill that there is still a potential issue with
corruption from a reboot that should be addressed under this jira.
> corrupted logs may not be correctly identified by FileTxnIterator
> -----------------------------------------------------------------
>
> Key: ZOOKEEPER-1453
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1453
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.3.3
> Reporter: Patrick Hunt
> Priority: Critical
> Attachments: 10.10.5.123-withPath1489.tar.gz, 10.10.5.123.tar.gz,
> 10.10.5.42-withPath1489.tar.gz, 10.10.5.42.tar.gz,
> 10.10.5.44-withPath1489.tar.gz, 10.10.5.44.tar.gz
>
>
> See ZOOKEEPER-1449 for background on this issue. The main problem is that
> during server recovery
> org.apache.zookeeper.server.persistence.FileTxnLog.FileTxnIterator.next()
> does not indicate if the available logs are valid or not. In some cases (say
> a truncated record and a single txnlog in the datadir) we will not detect
> that the file is corrupt, vs reaching the end of the file.
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