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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 Wed, 05 Nov 2014 00:23:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-2803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14197205#comment-14197205
] 

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

on both Mac (where the test passes) and windows (where not) the directory layout looks to
be the same where the issue lies, and there is a job.jar/job.jar (directory/file) present
both places, but only on windows does it end up finding the resource "job.jar" as the doubled
path, and then failing to find the lib1.jar subsequently (no doubt, because of the former).
 Pretty sure it's a classpath issue, don't think it's related to link differences as I don't
believe that was newly introduced.  and, still looking...

> 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
>            Priority: Critical
>
> 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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