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From "Vinod Kumar Vavilapalli (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2762) [MR-279] - Cleanup staging dir after job completion
Date Mon, 17 Oct 2011 15:34:11 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13128945#comment-13128945
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Vinod Kumar Vavilapalli commented on MAPREDUCE-2762:
----------------------------------------------------

Why can't we simply move the {{cleanupStagingDir()}} operation into MRAppMaster itself from
the Job. In that case, we don't need this complex event handling from Job into MRAppMaster
and then back into Job. Essentially
{code}
class MRAppMasster {
   ..... 

   @Override
   public void stop() {
      super.stop(); // Stop all services
      cleanupStagingDir(); // Cleanup the dir now.
   }
   .....
}
{code}

I get a feeling that there is a disconnect here and I may be missing something, am I?
                
> [MR-279] - Cleanup staging dir after job completion
> ---------------------------------------------------
>
>                 Key: MAPREDUCE-2762
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2762
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Ramya Sunil
>            Assignee: Mahadev konar
>            Priority: Blocker
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2762.patch, MAPREDUCE-2762.patch, MAPREDUCE-2762.patch,
MAPREDUCE-2762.patch
>
>
> The files created under the staging dir have to be deleted after job completion. Currently,
all job.* files remain forever in the ${yarn.apps.stagingDir}

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