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https://issues.apache.org/jira/browse/MAPREDUCE-4463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13421603#comment-13421603
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Arun C Murthy commented on MAPREDUCE-4463:
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Tom, I'm not sure we need the check in the TT. The TT should actually 'kill' 
all it's tasks on a 'reinit' which it should get when the JT reboots.
                
> 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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