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https://issues.apache.org/jira/browse/MAPREDUCE-4633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13449172#comment-13449172
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Robert Joseph Evans commented on MAPREDUCE-4633:
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The change looks fine to me.  It would be nice to have a unit test for this, 
but all it really would do is prove that HDFS-3890 is correct.  I am a +1 on 
this once HDFS-3890 goes in.
                
> history server doesn't set permissions on all subdirs 
> ------------------------------------------------------
>
>                 Key: MAPREDUCE-4633
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4633
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobhistoryserver
>    Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
>            Reporter: Thomas Graves
>            Assignee: Thomas Graves
>            Priority: Critical
>         Attachments: MAPREDUCE-4633.patch
>
>
> The job history server creates a bunch of subdirectories under the "done" 
> directory.  They are like 2012/09/03/000000.  It only sets the permissions on 
> the last one, ie 000000 to 770.    So the 2012/09/03 aren't explicitly set so 
> if the umask is more restrictive, they won't be set as it expects.

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