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https://issues.apache.org/jira/browse/YARN-2001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13990254#comment-13990254
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Jian He commented on YARN-2001:
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bq. Then node1 comes back to RM, RM recovers all containers on node1.
On a second thought, this can be changed to not recover those containers and
choose to kill them to meet the resource limit. That's another decision to make.
> 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
>
> RM should not accept allocate requests from AMs until all the NMs have
> registered with RM. For that, RM needs to remember the previous NMs and wait
> for all the NMs to register.
> This is also useful for remembering decommissioned nodes across restarts.
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