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https://issues.apache.org/jira/browse/YARN-4930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15229060#comment-15229060
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Jason Lowe commented on YARN-4930:
----------------------------------
Currently admins can accomplish the task via a kill -9 of the nodemanager
process, but it would be better to encapsulate the specific mechanism into a
CLI command.
> Convenience command to perform a work-preserving stop of the nodemanager
> ------------------------------------------------------------------------
>
> Key: YARN-4930
> URL: https://issues.apache.org/jira/browse/YARN-4930
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Jason Lowe
> Priority: Minor
>
> When the nodemanager is not under supervision
> (yarn.nodemanager.recovery.supervised=false) there may be cases where an
> admin wants to perform a work-preserving maintenance of the node but the
> nodemanager stop CLI command will cause the NM to cleanup containers. There
> should be a CLI command that shuts down the NM while preserving local
> filesystem and container state to allow a subsequent nodemanager start to
> recover containers.
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