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https://issues.apache.org/jira/browse/YARN-275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13567364#comment-13567364
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Bikas Saha commented on YARN-275:
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To be clear, I did not mean we should implement dynamic heartbeat intervals.
Just change the protocol so that heartbeat comes from the RM to the NM. The
dynamic part can be done later. I think the patch in this jira (after some
minor polishing) limits itself to just the protocol changes as a first step.
The RM sends a fixed value obtained via config.
> Make NodeManagers to NOT blindly heartbeat irrespective of whether previous
> heartbeat is processed or not.
> ----------------------------------------------------------------------------------------------------------
>
> Key: YARN-275
> URL: https://issues.apache.org/jira/browse/YARN-275
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager, resourcemanager
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Xuan Gong
> Attachments: Prototype.txt, YARN-270.1.patch
>
>
> We need NMs to back off. The event handler mechanism is very scalable but not
> infinitely so :)
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