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https://issues.apache.org/jira/browse/MAPREDUCE-1662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu updated MAPREDUCE-1662:
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Status: Patch Available (was: Open)
> TaskRunner.prepare() and close() can be removed
> -----------------------------------------------
>
> Key: MAPREDUCE-1662
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1662
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.22.0
> Reporter: Amareshwari Sriramadasu
> Fix For: 0.22.0
>
> Attachments: patch-1662.txt
>
>
> TaskRunner.prepare() and close() methods call only mapOutputFile.removeAll().
> The removeAll() call is a always a no-op in prepare(), because the directory
> is always empty during start up of the task. The removeAll() call in close()
> is useless, because it is followed by a attempt directory cleanup. Since the
> map output files are in attempt directory, the call to close() is useless.
> After MAPREDUCE-842, these calls are under TaskTracker space, passing the
> wrong conf. Now, the calls do not make sense at all.
> I think we can remove the methods.
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