Chris Nauroth commented on YARN-2803:

Thanks again, Craig.  I re-verified that the tests pass in my environment with 
this version of the patch.  I agree with the argument to retain the current 
behavior of secure mode (such as it is).

Sorry to nitpick, but it looks like some lines are indented by 1 space instead 
of 2.  Would you mind fixing that?  I'll be +1 after that.

        if (exec instanceof WindowsSecureContainerExecutor) {
         jarDir = nmPrivateClasspathJarDir;
        } else {
         jarDir = pwd; 

> 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, YARN-2803.1.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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