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https://issues.apache.org/jira/browse/MAPREDUCE-2355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13007490#comment-13007490
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Lianhui Wang commented on MAPREDUCE-2355:
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i think it is important when the next heartbeat should occur.
how to compute the time interval? that is decided by the different job of the
requirements.
> Add an out of band heartbeat damper
> -----------------------------------
>
> Key: MAPREDUCE-2355
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2355
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobtracker
> Reporter: Owen O'Malley
> Assignee: Arun C Murthy
> Attachments: mr-2355-from-sec-branch.txt
>
>
> We should have a configurable knob to throttle how many out of band
> heartbeats are sent.
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