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Posted to yarn-issues@hadoop.apache.org by "Gour Saha (JIRA)" <ji...@apache.org> on 2015/03/30 19:04:54 UTC
[jira] [Updated] (YARN-3417) AM to be able to exit with a request
saying "restart me with these (possibly updated) resource requirements"
[ https://issues.apache.org/jira/browse/YARN-3417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gour Saha updated YARN-3417:
----------------------------
Summary: AM to be able to exit with a request saying "restart me with these (possibly updated) resource requirements" (was: AM to be able to exit with a request saying "restart me with these (possibly updated) resource requirements))
> 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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