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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-807) Stray user files in mapred.system.dir with permissions other than 777 can prevent the jobtracker from starting up.
Date Mon, 17 Aug 2009 07:46:14 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12743989#action_12743989
] 

Amar Kamat commented on MAPREDUCE-807:
--------------------------------------

Result of test-patch
[exec] +1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     +1 tests included.  The patch appears to include 4 new or modified tests.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.

I wrote a testcase for this bug but unfortunately it was not the right way to do it and hence
removed the testcase.

All tests (mapred + contrib) passed except TestRecoveryManager (see MAPREDUCE-880).


> Stray user files in mapred.system.dir with permissions other than 777 can prevent the
jobtracker from starting up.
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-807
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-807
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>            Priority: Blocker
>         Attachments: MAPRED-807-v1.1.patch, MAPRED-807-v1.2.patch
>
>
> With restart disabled, the jobtracker does a _rm -rf_ of the mapred.system.dir. If the
mapred.system.dir contains user files with permissions other than 777 then the jobtracker
gets stuck in a loop trying to delete the mapred.system.dir (and each time failing with AccessControlException).

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