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https://issues.apache.org/jira/browse/MAPREDUCE-2129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083940#comment-13083940
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yuling commented on MAPREDUCE-2129:
-----------------------------------
good patch,got it.
mapreduce.job.committer.setup.cleanup.needed is add by MAPREDUCE-463.
> Job may hang if mapreduce.job.committer.setup.cleanup.needed=false and
> mapreduce.map/reduce.failures.maxpercent>0
> -----------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2129
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2129
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker
> Affects Versions: 0.20.1, 0.20.2, 0.20.3, 0.21.0, 0.21.1, 0.22.0
> Reporter: Kang Xiao
> Labels: hadoop
> Attachments: MAPREDUCE-2129.patch, MAPREDUCE-2129.patch
>
>
> Job may hang at RUNNING state if
> mapreduce.job.committer.setup.cleanup.needed=false and
> mapreduce.map/reduce.failures.maxpercent>0. It happens when some tasks fail
> but havent reached failures.maxpercent.
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