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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-690) RM exits on token cancel/renew problems
Date Fri, 17 May 2013 13:37:18 GMT

    [ https://issues.apache.org/jira/browse/YARN-690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13660714#comment-13660714
] 

Hudson commented on YARN-690:
-----------------------------

Integrated in Hadoop-Mapreduce-trunk #1428 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1428/])
    YARN-690. RM exits on token cancel/renew problems (daryn via bobby) (Revision 1483578)

     Result = FAILURE
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1483578
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/security/DelegationTokenRenewer.java

                
> RM exits on token cancel/renew problems
> ---------------------------------------
>
>                 Key: YARN-690
>                 URL: https://issues.apache.org/jira/browse/YARN-690
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 3.0.0, 0.23.7, 2.0.5-beta
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Blocker
>             Fix For: 3.0.0, 2.0.5-beta, 0.23.8
>
>         Attachments: YARN-690.patch, YARN-690.patch
>
>
> The DelegationTokenRenewer thread is critical to the RM.  When a non-IOException occurs,
the thread calls System.exit to prevent the RM from running w/o the thread.  It should be
exiting only on non-RuntimeExceptions.
> The problem is especially bad in 23 because the yarn protobuf layer converts IOExceptions
into UndeclaredThrowableExceptions (RuntimeException) which causes the renewer to abort the
process.  An UnknownHostException takes down the RM...

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