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https://issues.apache.org/jira/browse/YARN-3417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Varun Saxena reassigned YARN-3417:
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Assignee: Varun Saxena
> AM to be able to exit with a request saying "restart me with these (possibly
> updated) resource requirements)
> ------------------------------------------------------------------------------------------------------------
>
> Key: YARN-3417
> URL: https://issues.apache.org/jira/browse/YARN-3417
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: resourcemanager
> Affects Versions: 2.7.0
> Reporter: Steve Loughran
> Assignee: Varun Saxena
> Priority: Minor
>
> If an AM wants to reconfigure itself or restart with new resources, there's
> no way to do this without the active participation of a client.
> It can call System.exit and rely on YARN to restart it -but that counts as a
> failure and may lose the entire app. furthermore, that doesn't allow the AM
> to resize itself.
> A simple exit-code to be interpreted as restart-without-failure could handle
> the first case; an explicit call to indicate restart, including potentially
> new resource/label requirements, could be more reliabile, and certainly more
> flexible.
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