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https://issues.apache.org/jira/browse/MAPREDUCE-5570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13935557#comment-13935557
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Jason Lowe commented on MAPREDUCE-5570:
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+1 lgtm, committing this.
> Map task attempt with fetch failure has incorrect attempt finish time
> ---------------------------------------------------------------------
>
> Key: MAPREDUCE-5570
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5570
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mr-am, mrv2
> Affects Versions: 0.23.9, 2.1.1-beta
> Reporter: Jason Lowe
> Assignee: Rushabh S Shah
> Attachments: patch-MapReduce-5570-v2.patch, patch-MapReduce-5570.patch
>
>
> If a map task attempt is retroactively failed due to excessive fetch failures
> reported by reducers then the attempt's finish time is set to the time the
> task was retroactively failed rather than when the task attempt completed.
> This causes the map task attempt to appear to have run for much longer than
> it actually did.
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