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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1607) Task controller may not set permissions for a task cleanup attempt's log directory
Date Wed, 28 Apr 2010 17:07:50 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12861840#action_12861840
] 

Hadoop QA commented on MAPREDUCE-1607:
--------------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12443075/patch-1607-1.txt
  against trunk revision 938805.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 21 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/152/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/152/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/152/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/152/console

This message is automatically generated.

> Task controller may not set permissions for a task cleanup attempt's log directory
> ----------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1607
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1607
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: task-controller
>    Affects Versions: 0.21.0
>            Reporter: Hemanth Yamijala
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.21.0
>
>         Attachments: patch-1607-1.txt, patch-1607-ydist.txt, patch-1607.txt
>
>
> Task controller uses the INITIALIZE_TASK command to initialize task attempt and task
log directories. For cleanup tasks, task attempt directories are named as task-attempt-id.cleanup.
But log directories do not have the .cleanup suffix. The task controller is not aware of this
distinction and tries to set permissions for log directories named task-attempt-id.cleanup.
This is a NO-OP. Typically the task cleanup runs on the same node that ran the original task
attempt as well. So, the task log directories are already properly initialized. However, the
task cleanup can run on a node that has not run the original task attempt. In that case, the
initialization would not happen and this could result in the cleanup task failing.

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