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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3475) JT can't renew its own tokens
Date Mon, 28 Nov 2011 21:25:40 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158791#comment-13158791
] 

Hadoop QA commented on MAPREDUCE-3475:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12505394/MAPREDUCE-3475-1.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    -1 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1355//console

This message is automatically generated.
                
> JT can't renew its own tokens
> -----------------------------
>
>                 Key: MAPREDUCE-3475
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3475
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.20.205.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: MAPREDUCE-3475-1.patch, MAPREDUCE-3475.patch
>
>
> When external systems submit jobs whose tasks need to submit additional jobs (such as
oozie/pig), they include their own MR token used to submit the job.  The token's renewer may
not allow the JT to renew the token.  The JT log will include very long SASL/GSSAPI exceptions
when the job is submitted.  It is also dubious for the JT to renew its token because it renders
the expiry as meaningless since the JT will renew its own token until the max lifetime is
exceeded.
> After speaking with Owen & Jitendra, the immediate solution is for the JT to not
attempt to renew its own tokens.

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