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https://issues.apache.org/jira/browse/MAPREDUCE-3380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147264#comment-13147264
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Ahmed Radwan commented on MAPREDUCE-3380:
-----------------------------------------
John, 1 & 2 in your comment are the same. client in #1, is the YarnRunner which
calls ResourceMgrDelegate.getDelegationToken() but it returns null because it
is not implemented.
> JobClient.getDelegationToken() returns NULL
> -------------------------------------------
>
> Key: MAPREDUCE-3380
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3380
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mr-am
> Affects Versions: 0.23.0, 0.24.0
> Reporter: Alejandro Abdelnur
> Priority: Blocker
> Fix For: 0.24.0, 0.23.1
>
>
> The JobClient.getDelegationToken() method is returning NULL, this makes Oozie
> fail when trying to get the delegation token to use it for starting a job.
> What is seems to be happing is that Jobclient.getDelegationToken() calls
> Cluster.getDelegationToken() that calls YarnRunner.getDelegationToken() that
> calls ResourceMgrDelegate.getDelegationToken(). And the last one is not
> implemented. (Thanks Ahmed for tracing this in MR2 code)
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