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https://issues.apache.org/jira/browse/MAPREDUCE-4481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13422814#comment-13422814
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Arun C Murthy commented on MAPREDUCE-4481:
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What is the use case?
> User Log Retention across TT restarts
> -------------------------------------
>
> Key: MAPREDUCE-4481
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4481
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: tasktracker
> Affects Versions: 1.0.0
> Reporter: Benoy Antony
> Assignee: Benoy Antony
> Priority: Minor
>
> The tasktrackers cleanup the userlog directory when they restart.
> This happens independent of value of mapred.userlog.retain.hours.
> The feature is to add a configurable feature to respect
> mapred.userlog.retain.hours across TT restarts
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