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https://issues.apache.org/jira/browse/YARN-399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli updated YARN-399:
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Issue Type: Improvement (was: Bug)
> Add an out of band heartbeat damper
> -----------------------------------
>
> Key: YARN-399
> URL: https://issues.apache.org/jira/browse/YARN-399
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: nodemanager
> Affects Versions: 0.23.6
> Reporter: Thomas Graves
> Assignee: Thomas Graves
> Attachments: YARN-399.PATCH
>
>
> We are seeing issues with the scheduler queue backing up on the RM. We have
> the nodemanager heartbeats set at 5 seconds which should be more then long
> enough for the number of apps we are running. We believe this is due to the
> out of band heartbeats of the nodemanager coming to soon when we have jobs
> with lots of containers that finish quickly.
> To help with that we could add an out of band heartbeat damper to the
> nodemanager similar to what 1.X Tasktrackers have. MAPREDUCE-2355 added it
> in 1.x.
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