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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1430) JobTracker should be able to renew delegation tokens for the jobs
Date Wed, 17 Feb 2010 23:29:27 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835047#action_12835047

Devaraj Das commented on MAPREDUCE-1430:

One more thing - the submitJob API where you set up the delegation tokens for renewal should
be within a "try-catch" block. If there is any exception during job submission then the token
should be removed from the delegation token set so that it never gets renewed. Also, you should
cancel the token if the mapreduce.job.complete.cancel.delegation.tokens is true. BTW by default
mapreduce.job.complete.cancel.delegation.tokens should be true.

> JobTracker should be able to renew delegation tokens for the jobs
> -----------------------------------------------------------------
>                 Key: MAPREDUCE-1430
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1430
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: jobtracker
>    Affects Versions: 0.22.0
>            Reporter: Devaraj Das
>            Assignee: Boris Shkolnik
>             Fix For: 0.22.0
>         Attachments: MAPREDUCE-1430-5.patch, MAPREDUCE-1430-6.patch
> JobTracker should automatically renew delegation tokens for the jobs it is currently

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