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Posted to mapreduce-dev@hadoop.apache.org by "Sharad Agarwal (JIRA)" <ji...@apache.org> on 2011/07/17 12:14:59 UTC

[jira] [Created] (MAPREDUCE-2702) OutputCommitter changes for MR Application Master recovery

OutputCommitter changes for MR Application Master recovery
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                 Key: MAPREDUCE-2702
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2702
             Project: Hadoop Map/Reduce
          Issue Type: New Feature
          Components: mrv2
            Reporter: Sharad Agarwal
            Assignee: Sharad Agarwal


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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