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https://issues.apache.org/jira/browse/MAPREDUCE-2589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13067516#comment-13067516
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Devaraj K commented on MAPREDUCE-2589:
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One improvement can be done in the patch, now for every file in the user log
directory it is getting the jobs which are to be completed every time and
checking. Instead of this it can get the jobs list once and can check for all
the files in the user log directory whether it belongs to running job or not.
> TaskTracker not purging userlog directories
> -------------------------------------------
>
> Key: MAPREDUCE-2589
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2589
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.205.0
> Environment: 0.20.205
> Reporter: Sherry Chen
> Assignee: Sherry Chen
> Priority: Minor
> Fix For: 0.20.205.0
>
> Attachments: MAPREDUCE-2589.patch, cleanup_userlogs.py
>
>
> UserLogCleaner is not robust. Leftover userlogs after a restart sometimes
> have to be manually
> cleaned. Things can accumulate over a period of time.
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