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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6649) [0.92 UNIT TESTS] TestReplication.queueFailover occasionally fails [Part-1]
Date Wed, 12 Sep 2012 18:12:08 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454189#comment-13454189

Jean-Daniel Cryans commented on HBASE-6649:

What I meant is that the reader gets this 10 times:

java.io.EOFException: hdfs://localhost:60044/user/hudson/hbase/.oldlogs/vesta.apache.org%2C57779%2C1345217521341.1345217601487,
entryStart=40929, pos=40960, end=40960, edit=3

So if I'm reading this correctly it's able to read the file and got 3 edits but gets an EOF.
Is something half written? Then it gives up on the file:

2012-08-17 15:33:50,099 INFO  [ReplicationExecutor-0.replicationSource,2-vesta.apache.org,57779,1345217521341]
regionserver.ReplicationSourceManager(352): Done with the recovered queue 2-vesta.apache.org,57779,1345217521341

And there's data loss.
> [0.92 UNIT TESTS] TestReplication.queueFailover occasionally fails [Part-1]
> ---------------------------------------------------------------------------
>                 Key: HBASE-6649
>                 URL: https://issues.apache.org/jira/browse/HBASE-6649
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Devaraj Das
>            Assignee: Devaraj Das
>             Fix For: 0.96.0, 0.92.3, 0.94.2
>         Attachments: 6649-0.92.patch, 6649-1.patch, 6649-2.txt, 6649-trunk.patch, 6649-trunk.patch,
6649.txt, HBase-0.92 #495 test - queueFailover [Jenkins].html, HBase-0.92 #502 test - queueFailover
> Have seen it twice in the recent past: http://bit.ly/MPCykB & http://bit.ly/O79Dq7
> Looking briefly at the logs hints at a pattern - in both the failed test instances, there
was an RS crash while the test was running.

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