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Date: Thu, 28 Apr 2011 18:36:03 +0000 (UTC)
From: "Boris Shkolnik (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-2420) JobTracker should be able to
 renew delegation token over HTTP
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-2420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13026636#comment-13026636 ] 

Boris Shkolnik commented on MAPREDUCE-2420:
-------------------------------------------

+1 overall.
     [exec]
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]
     [exec]     -1 tests included.  The patch doesn't appear to include any new or modified tests.
     [exec]                         Please justify why no new tests are needed for this patch.
     [exec]                         Also please list what manual steps were performed to verify this patch.
     [exec]
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.     [exec]
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler warnings.
     [exec]
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec]
     [exec]     +1 release audit.  The applied patch does not increase the total number of release audit warnings.
     [exec]
     [exec]

No unit tests, but I did manual testing using discp copying from the same cluster or from 0.20 one

> JobTracker should be able to renew delegation token over HTTP
> -------------------------------------------------------------
>
>                 Key: MAPREDUCE-2420
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2420
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.20.4
>            Reporter: Boris Shkolnik
>            Assignee: Boris Shkolnik
>         Attachments: MR-2420-1.patch, MR-2420.22-1.patch, MR-2420.22-2.patch, MR-2420.patch, MR2420-2.patch
>
>
> in case JobTracker has to talk to a NameNode running a different version (RPC version mismatch), Jobtracker should be able to fall back to HTTP renewal.
> Example of the case - running distcp between different versions using hfpt.

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