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https://issues.apache.org/jira/browse/YARN-41?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14541039#comment-14541039
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Vinod Kumar Vavilapalli commented on YARN-41:
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bq. However, a little concern here is it could diverge more for behaviors
between "stop nodemanager" and "kill -9 nmPid". Not sure if user expect these 2
has similar behaviors (at least, for NM restart work preserving, we expect two
has the same result, please refer some discussions at YARN-2331).
In the case of work-preserving NM restart (or under supervision as YARN-2331
calls it), we can make the NM not do an unregister?
> The RM should handle the graceful shutdown of the NM.
> -----------------------------------------------------
>
> Key: YARN-41
> URL: https://issues.apache.org/jira/browse/YARN-41
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, resourcemanager
> Reporter: Ravi Teja Ch N V
> Assignee: Devaraj K
> Labels: BB2015-05-TBR
> Attachments: MAPREDUCE-3494.1.patch, MAPREDUCE-3494.2.patch,
> MAPREDUCE-3494.patch, YARN-41-1.patch, YARN-41-2.patch, YARN-41-3.patch,
> YARN-41-4.patch, YARN-41.patch
>
>
> Instead of waiting for the NM expiry, RM should remove and handle the NM,
> which is shutdown gracefully.
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