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https://issues.apache.org/jira/browse/HADOOP-2528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12556146#action_12556146
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Doug Cutting commented on HADOOP-2528:
--------------------------------------

> Should we enable permissions by default in DFS, at least through development 
> phase [ ...]

I think we should certainly encourage developers to do this, but I'm hesitant 
to change it in subversion.

> check permissions for job inputs and outputs
> --------------------------------------------
>
>                 Key: HADOOP-2528
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2528
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Doug Cutting
>             Fix For: 0.16.0
>
>         Attachments: HADOOP-2528-0.patch, HADOOP-2528-1.patch
>
>
> On job submission, filesystem permissions should be checked to ensure that 
> the input directory is readable and that the output directory is writable.

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