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https://issues.apache.org/jira/browse/MAPREDUCE-2206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965115#action_12965115
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dhruba borthakur commented on MAPREDUCE-2206:
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from my understanding, the cleanup task is machine specific and is *supposed*
to go to the same machine where the user's task was run. Maybe a mapred guru
can clarify this.
> The task-cleanup tasks should be optional
> -----------------------------------------
>
> Key: MAPREDUCE-2206
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2206
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobtracker
> Affects Versions: 0.23.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.23.0
>
>
> For job does not use OutputCommitter.abort(), this should be able to turn off.
> This improves the latency of the job because failed tasks are often the
> bottleneck of the jobs.
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