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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4463) JobTracker recovery fails with HDFS permission issue
Date Tue, 24 Jul 2012 22:29:34 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13421836#comment-13421836
] 

Tom White commented on MAPREDUCE-4463:
--------------------------------------

Arun, I've seen an occasional race where the TT reinit actually causes removeTaskFromJob()
to be called just _after_ the equivalent recovered TIP has started, so the new TIP is erroneously
removed from rjob.tasks. This code protects from that happening. Does that sound reasonable?
                
> JobTracker recovery fails with HDFS permission issue
> ----------------------------------------------------
>
>                 Key: MAPREDUCE-4463
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4463
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv1
>    Affects Versions: 1.2.0
>            Reporter: Tom White
>            Assignee: Tom White
>         Attachments: MAPREDUCE-4463.patch, MAPREDUCE-4463.patch
>
>
> Recovery fails when the job user is different to the JT owner (i.e. on anything bigger
than a pseudo-distributed cluster).

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