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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4921) JobClient should acquire HS token with RM principal
Date Fri, 11 Jan 2013 19:00:14 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13551399#comment-13551399

Robert Joseph Evans commented on MAPREDUCE-4921:

The patch looks fine to me I am +1 for it for trunk and branch-2.  For branch-0.23 it looks
like the patch no longer applies (TestYARNRunner.java appears to have been updated)  Could
you upmerge it?

I'll check it in for the others. 
> JobClient should acquire HS token with RM principal
> ---------------------------------------------------
>                 Key: MAPREDUCE-4921
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4921
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 3.0.0, 2.0.3-alpha, 0.23.6
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Blocker
>         Attachments: MAPREDUCE-4921.branch-23.patch, MAPREDUCE-4921.branch-23.patch,
MAPREDUCE-4921.patch, MAPREDUCE-4921.patch
> The job client may acquire a history server token during job submission.  The renewer
is specified in a config value that the user must supply (for new api, a bit different for
old api).  If this value is not the RM's principal, then the RM cannot renew the token and
long running jobs will fail.  Since the token is implicitly acquired for the job, the HS token's
renewer should always be the RM's principal.

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