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https://issues.apache.org/jira/browse/TEZ-2324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14497052#comment-14497052
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Siddharth Seth commented on TEZ-2324:
-------------------------------------

There's already a jira for this, and linked under the scalability improvement 
jira.

> Dynamic heartbeat intervals between RM and AM
> ---------------------------------------------
>
>                 Key: TEZ-2324
>                 URL: https://issues.apache.org/jira/browse/TEZ-2324
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Bikas Saha
>
> Currently there is a config (10ms) which can be an issue for large clusters 
> with many jobs heartbeating to the RM. We should be able to scale it up and 
> down based on outstanding requests etc. e.g. if there are no outstanding 
> requests then ping on larger intervals. The heuristics may be more 
> sophisticated than that.



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