Hudson commented on YARN-661:

FAILURE: Integrated in Hadoop-trunk-Commit #6393 (See 
YARN-2755. NM fails to clean up usercache_DEL_<timestamp> dirs after YARN-661. 
Contributed by Siqi Li (jlowe: rev 73e626ad91cd5c06a005068d8432fd16e06fe6a0)
* hadoop-yarn-project/CHANGES.txt

> NM fails to cleanup local directories for users
> -----------------------------------------------
>                 Key: YARN-661
>                 URL: https://issues.apache.org/jira/browse/YARN-661
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.1.0-beta, 0.23.8
>            Reporter: Jason Lowe
>            Assignee: Omkar Vinit Joshi
>             Fix For: 2.1.0-beta
>         Attachments: YARN-661-20130701.patch, YARN-661-20130708.patch, 
> YARN-661-20130710.1.patch, YARN-661-20130711.1.patch, 
> YARN-661-20130712.1.patch, YARN-661-20130715.1.patch, 
> YARN-661-20130716.1.patch
> YARN-71 added deletion of local directories on startup, but in practice it 
> fails to delete the directories because of permission problems.  The 
> top-level usercache directory is owned by the user but is in a directory that 
> is not writable by the user.  Therefore the deletion of the user's usercache 
> directory, as the user, fails due to lack of permissions.

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