Hudson commented on YARN-3626:

FAILURE: Integrated in Hadoop-Yarn-trunk #927 (See 
YARN-3626. On Windows localized resources are not moved to the front of the 
classpath when they should be. Contributed by Craig Welch (xgong: rev 
* hadoop-yarn-project/CHANGES.txt

> On Windows localized resources are not moved to the front of the classpath 
> when they should be
> ----------------------------------------------------------------------------------------------
>                 Key: YARN-3626
>                 URL: https://issues.apache.org/jira/browse/YARN-3626
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>         Environment: Windows
>            Reporter: Craig Welch
>            Assignee: Craig Welch
>             Fix For: 2.7.1
>         Attachments: YARN-3626.0.patch, YARN-3626.4.patch, YARN-3626.6.patch
> In response to the mapreduce.job.user.classpath.first setting the classpath 
> is ordered differently so that localized resources will appear before system 
> classpath resources when tasks execute.  On Windows this does not work 
> because the localized resources are not linked into their final location when 
> the classpath jar is created.  To compensate for that localized jar resources 
> are added directly to the classpath generated for the jar rather than being 
> discovered from the localized directories.  Unfortunately, they are always 
> appended to the classpath, and so are never preferred over system resources.

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