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https://issues.apache.org/jira/browse/MAPREDUCE-3141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli updated MAPREDUCE-3141:
-----------------------------------------------

          Component/s: applicationmaster
             Priority: Blocker  (was: Major)
    Affects Version/s: 0.23.0

After MAPREDUCE-3056 went in, I ran single node secure setup which is breaking 
with YARN+MR.

I see that single node secure setup is now identical to a multi-node setup only 
after MAPREDUCE-3056. Before that, MRAppMaster(run on the same node) used to 
pick up kerberos tokens from the local token-cache which was filled during 
job-submit(again on the same node); so in a sense single node-setup wasn't the 
same as multi-node secure setup.

I suspect MAPREDUCE-3006 to have broken this code, but surprised that others 
haven't run into this.
                
> Yarn+MR secure mode is broken, uncovered after MAPREDUCE-3056
> -------------------------------------------------------------
>
>                 Key: MAPREDUCE-3141
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3141
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: applicationmaster, security
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>            Priority: Blocker
>             Fix For: 0.23.0
>
>


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