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From "Ramya Sunil (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2977) ResourceManager needs to renew and cancel tokens associated with a job
Date Wed, 26 Oct 2011 00:56:32 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13135594#comment-13135594
] 

Ramya Sunil commented on MAPREDUCE-2977:
----------------------------------------

Tested the patch by setting a delegation token renewal time  < duration to complete a app.
RM renewed the DT periodically and the app completed successfully:

Renewing HDFS_DELEGATION_TOKEN token <token> for <user>
org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer: Renewing delegation-token
for:<host:port>; new expiration;<time>

After the job completed, the delegation token was cancelled
org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer: Canceling token
                
> ResourceManager needs to renew and cancel tokens associated with a job
> ----------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2977
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2977
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2, resourcemanager, security
>    Affects Versions: 0.23.0
>            Reporter: Owen O'Malley
>            Assignee: Arun C Murthy
>            Priority: Blocker
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2977.patch, MAPREDUCE-2977.patch
>
>
> The JobTracker currently manages tokens for the applications and the resource manager
needs the same functionality.

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