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Posted to mapreduce-issues@hadoop.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2011/06/01 20:37:48 UTC
[jira] [Commented] (MAPREDUCE-2452) Delegation token cancellation
shouldn't hold global JobTracker lock
[ https://issues.apache.org/jira/browse/MAPREDUCE-2452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13042353#comment-13042353 ]
Owen O'Malley commented on MAPREDUCE-2452:
------------------------------------------
Looking good. A few more points:
* Please have the cancelToken catch the InterruptedException and create a new RuntimeException that wraps it.
* Please have the DelegationTokenCancelThread catch InterruptedException and exit gracefully.
> Delegation token cancellation shouldn't hold global JobTracker lock
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-2452
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2452
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker
> Reporter: Devaraj Das
> Assignee: Devaraj Das
> Fix For: 0.23.0
>
> Attachments: cancel-delegation-token-fix.patch, cancel-delegation-token-fix.patch
>
>
> Currently, when the JobTracker cancels a job's delegation token (at the end of the job), it holds the global lock. This is not desired.
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