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https://issues.apache.org/jira/browse/MAPREDUCE-5754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13913192#comment-13913192
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Jason Lowe commented on MAPREDUCE-5754:
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+1, lgtm. I'll commit this later today.
> Preserve Job diagnostics in history
> -----------------------------------
>
> Key: MAPREDUCE-5754
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5754
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobhistoryserver, mr-am
> Affects Versions: 2.2.0
> Reporter: Gera Shegalov
> Assignee: Gera Shegalov
> Attachments: MAPREDUCE-5754.v01.patch, MAPREDUCE-5754.v02.patch,
> MAPREDUCE-5754.v03.patch, MAPREDUCE-5754.v04.patch, MAPREDUCE-5754.v05.patch
>
>
> History does not store the runtime diagnostics information. JobHistoryParser
> tries to blame a task. We propose to preserve the original runtime
> diagnostics that covers all the cases including the job being killed. This is
> particularly important in the context of user-supplied diagnostic message as
> in MAPREDUCE-5648.
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