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https://issues.apache.org/jira/browse/MAPREDUCE-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kang Xiao updated MAPREDUCE-2339:
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Attachment: MAPREDUCE-2339.patch
update patch
> optimize JobInProgress.getTaskInProgress(taskid)
> ------------------------------------------------
>
> Key: MAPREDUCE-2339
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2339
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobtracker
> Affects Versions: 0.20.2, 0.21.0
> Reporter: Kang Xiao
> Attachments: MAPREDUCE-2339.patch, MAPREDUCE-2339.patch
>
>
> JobInProgress.getTaskInProgress(taskid) use a linner search to get the
> TaskInProgress object by taskid. In fact, it can be replaced by much more
> efficient array index operation.
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