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From "Mit Desai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5607) Backport MAPREDUCE-5086 - MR app master deletes staging dir when sent a reboot command from the RM
Date Sat, 16 Nov 2013 21:27:21 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13824635#comment-13824635
] 

Mit Desai commented on MAPREDUCE-5607:
--------------------------------------

I testes the patch on my machine. Test passes both before and after applying the patch. Looks
good to me.

> Backport MAPREDUCE-5086 - MR app master deletes staging dir when sent a reboot command
from the RM
> --------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5607
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5607
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>    Affects Versions: 0.23.9
>            Reporter: Jonathan Eagles
>            Assignee: Jonathan Eagles
>         Attachments: MAPREDUCE-5607-branch-0.23.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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