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https://issues.apache.org/jira/browse/MAPREDUCE-5485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14955012#comment-14955012
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Junping Du commented on MAPREDUCE-5485:
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The proposal above sounds good to me. [~nemon], thanks for filing this JIRA
which is quite useful in some scenarios. If you don't mind, I would like to
work on it and move it forward. Thanks!
> Allow repeating job commit by extending OutputCommitter API
> -----------------------------------------------------------
>
> Key: MAPREDUCE-5485
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5485
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 2.1.0-beta
> Reporter: Nemon Lou
>
> There are chances MRAppMaster crush during job committing,or NodeManager
> restart cause the committing AM exit due to container expire.In these cases
> ,the job will fail.
> However,some jobs can redo commit so failing the job becomes unnecessary.
> Let clients tell AM to allow redo commit or not is a better choice.
> This idea comes from Jason Lowe's comments in MAPREDUCE-4819
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