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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-158) mapred.userlog.retain.hours killing long running tasks
Date Fri, 16 Oct 2009 05:03:31 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12766414#action_12766414

Amareshwari Sriramadasu commented on MAPREDUCE-158:

As per http://issues.apache.org/jira/browse/MAPREDUCE-927?focusedCommentId=12766412&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12766412,

TaskTracker should delete the userlogs only after mapred.userlog.retain.hours after the job
completion. Then it becomes a TaskTracker config parameter. And there will no permission issues
for deletion.

> mapred.userlog.retain.hours killing long running tasks
> ------------------------------------------------------
>                 Key: MAPREDUCE-158
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-158
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>         Environment: 0.19.2-dev, r753365 
>            Reporter: Billy Pearson
>         Attachments: hadoop-5600.patch
> One can reproduce the scenario by configuring mapred.userlog.retain.hours to 1hr, and
running tasks that take more than an hour.
> More info on closed ticket HADOOP-5591.

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