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https://issues.apache.org/jira/browse/MAPREDUCE-5086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619025#comment-13619025
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jian he commented on MAPREDUCE-5086:
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[~jlowe], I fixed the patch based on your comments of the test
> MR app master deletes staging dir when sent a reboot command from the RM
> ------------------------------------------------------------------------
>
> Key: MAPREDUCE-5086
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5086
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: jian he
> Assignee: jian he
> Attachments: YARN-472.1.patch, YARN-472.2.patch, YARN-472.3.patch,
> YARN-472.4.patch, YARN-472.5.patch, YARN-472.6.patch, YARN-472.7.patch
>
>
> If the RM is restarted when the MR job is running, then it sends a reboot
> command to the job. The job ends up deleting the staging dir and that causes
> the next attempt to fail.
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