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https://issues.apache.org/jira/browse/MAPREDUCE-4306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13396223#comment-13396223
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Ahmed Radwan commented on MAPREDUCE-4306:
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Thanks Siddharth for the review!
I agree, I think it is better to completely remove the "-user" option. I
originally thought of just keeping it in case it can be used for testing or
other purposes. But leaving it now may lead to confusion, and also setting it
to something other than the original user will lead to failure as described
above.
Also reading ApplicationConstants.Environment.USER is simpler than reevaluating
the username from ugi (which will give the same result after all). I have
updated the patch accordingly. Thanks!
> Problem running Distributed Shell applications as a user other than the one
> started the daemons
> -----------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-4306
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4306
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 2.0.0-alpha
> Reporter: Ahmed Radwan
> Assignee: Ahmed Radwan
> Fix For: 2.0.1-alpha
>
> Attachments: MAPREDUCE-4306.patch, MAPREDUCE-4306_rev2.patch
>
>
> Using the tarball, if you start the yarn daemons using one user and then
> switch to a different user. You can successfully run MR jobs, but DS jobs
> fail to run. Only able to run DS jobs using the user who started the daemons.
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