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From "Craig Welch (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2803) MR distributed cache not working correctly on Windows after NodeManager privileged account changes.
Date Fri, 07 Nov 2014 19:23:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-2803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14202504#comment-14202504
] 

Craig Welch commented on YARN-2803:
-----------------------------------

Right, we currently don't run (can't..) any unit tests through the secure windows codepath
(which is problematic...) so disabling the tests in that case is accomplished :-) I'm going
to put up a patch in a few which will retain the existing logic for windows secure even though
we know it is not quite correct - the patch as it is now will completely break windows secure
mode, so I think it's better for now to allow that path to function as it did before and only
change the non-secure path so that we fix this issue - I think we'll want to go with that
patch for now, and to open a follow-on to address the windows-secure case in a better way.

> MR distributed cache not working correctly on Windows after NodeManager privileged account
changes.
> ---------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2803
>                 URL: https://issues.apache.org/jira/browse/YARN-2803
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Chris Nauroth
>            Assignee: Craig Welch
>            Priority: Critical
>         Attachments: YARN-2803.0.patch
>
>
> This problem is visible by running {{TestMRJobs#testDistributedCache}} or {{TestUberAM#testDistributedCache}}
on Windows.  Both tests fail.  Running git bisect, I traced it to the YARN-2198 patch to remove
the need to run NodeManager as a privileged account.  The tests started failing when that
patch was committed.



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