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Date: Wed, 5 Oct 2011 12:19:34 +0000 (UTC)
From: "Vinod Kumar Vavilapalli (Updated) (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Updated] (MAPREDUCE-2702) [MR-279] OutputCommitter changes
 for MR Application Master recovery
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     [ https://issues.apache.org/jira/browse/MAPREDUCE-2702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated MAPREDUCE-2702:
-----------------------------------------------

      Resolution: Fixed
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

Good catch Sharad, I missed that one.

Reviewed the latest patch. Looks good. +1.

I just committed this to trunk and branch-0.23. Thanks Sharad and Arun!
                
> [MR-279] OutputCommitter changes for MR Application Master recovery
> -------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2702
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2702
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: applicationmaster, mrv2
>    Affects Versions: 0.23.0
>            Reporter: Sharad Agarwal
>            Assignee: Sharad Agarwal
>            Priority: Blocker
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2702.patch, MAPREDUCE-2702.patch, MAPREDUCE-2702.patch, mr2702_v1.patch, mr2702_v2.patch, mr2702_v3.patch, mr2702_v4.patch
>
>
> In MR AM recovers from a crash, it only reruns the non completed tasks. The completed tasks (along with their output, if any) needs to be recovered from the previous life. This would require some changes in OutputCommitter.

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