[jira] Updated: (MAPREDUCE-927) Cleanup of task-logs should happen in TaskTracker instead of the Child

["Vinod K V (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod K V updated MAPREDUCE-927:
--------------------------------

             Priority: Blocker  (was: Major)
    Affects Version/s: 0.21.0
        Fix Version/s: 0.21.0

This is a blocker. After MAPREDUCE-842, when LinuxTaskController is in use, user's tasks run as the user and userlogs are owned by users themselves. So cleanup of userlogs of one user cannot be completed in the child jvm of another user.

Essentially, userlogs' cleanup is completely broken with LinuxTaskController and will hasten MAPREDUCE-1100 issue. This should be fixed.

> Cleanup of task-logs should happen in TaskTracker instead of the Child
> ----------------------------------------------------------------------
>
>                 Key: MAPREDUCE-927
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-927
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 0.21.0
>            Reporter: Vinod K V
>            Priority: Blocker
>             Fix For: 0.21.0
>
>
> Task logs' cleanup is being done in Child now. This is undesirable atleast for two reasons: 1) failures while cleaning up will affect the user's tasks, and 2) the task's wall time will get affected due to operations that TT actually should own.

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