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https://issues.apache.org/jira/browse/YARN-3439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14393433#comment-14393433
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Rohini Palaniswamy commented on YARN-3439:
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bq. Essentially the idea is to reference count the tokens and only attempt to
cancel them when the token is no longer referenced.
Would be a good idea. I think this is the third time we have had delegation
token renewal broken for Oozie with the Hadoop 2.x line.
> RM fails to renew token when Oozie launcher leaves before sub-job finishes
> --------------------------------------------------------------------------
>
> Key: YARN-3439
> URL: https://issues.apache.org/jira/browse/YARN-3439
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.7.0
> Reporter: Jason Lowe
> Assignee: Daryn Sharp
> Priority: Blocker
> Attachments: YARN-3439.001.patch
>
>
> When the Oozie launcher runs a standard MapReduce job (not Pig) it doesn't
> linger waiting for the sub-job to finish. At that point the RM stops
> renewing delegation tokens for the launcher job which wreaks havoc on the
> sub-job if the sub-job runs long enough for the tokens to expire.
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