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https://issues.apache.org/jira/browse/MAPREDUCE-1845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12881903#action_12881903
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Scott Chen commented on MAPREDUCE-1845:
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The failed tests are not on the code path of the change.
> FairScheduler.tasksToPeempt() can return negative number
> --------------------------------------------------------
>
> Key: MAPREDUCE-1845
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1845
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/fair-share
> Affects Versions: 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1845.20100717.txt
>
>
> This method can return negative number. This will cause the preemption to
> under-preempt.
> The bug was discovered by Joydeep.
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