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https://issues.apache.org/jira/browse/YARN-2001?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jian He updated YARN-2001:
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Attachment: YARN-2001.5.patch
Trying the same patch again. no failures actually found in the jenkins console
log
> Threshold for RM to accept requests from AM after failover
> ----------------------------------------------------------
>
> Key: YARN-2001
> URL: https://issues.apache.org/jira/browse/YARN-2001
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Jian He
> Assignee: Jian He
> Attachments: YARN-2001.1.patch, YARN-2001.2.patch, YARN-2001.3.patch,
> YARN-2001.4.patch, YARN-2001.5.patch, YARN-2001.5.patch, YARN-2001.5.patch
>
>
> After failover, RM may require a certain threshold to determine whether it’s
> safe to make scheduling decisions and start accepting new container requests
> from AMs. The threshold could be a certain amount of nodes. i.e. RM waits
> until a certain amount of nodes joining before accepting new container
> requests. Or it could simply be a timeout, only after the timeout RM accepts
> new requests.
> NMs joined after the threshold can be treated as new NMs and instructed to
> kill all its containers.
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