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From "Todd Lipcon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2332) Improve error messages when MR dirs on local FS have bad ownership
Date Mon, 31 Oct 2011 18:29:32 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13140411#comment-13140411
] 

Todd Lipcon commented on MAPREDUCE-2332:
----------------------------------------

This should probably be re-targeted at MR2 in trunk, and the original patch used on branch-0.20
security. I probably won't get to it for a little while, but if someone else has some spare
time, happy to review.
                
> Improve error messages when MR dirs on local FS have bad ownership
> ------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2332
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2332
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>              Labels: newbie
>         Attachments: mr-2332.txt
>
>
> A common source of user difficulty on a secure cluster is understanding which paths should
be owned by which users. The task log directory in particular is often missed, since it has
to be owned by mapred but may be inside a logs dir which has different ownership. Right now
the user has to spelunk in the code to understand the exception they get if this dir has bad
ownership.

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