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https://issues.apache.org/jira/browse/YARN-4496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15088251#comment-15088251
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Jian He commented on YARN-4496:
-------------------------------

+1, [~asuresh], are you working on this ?

> Improve HA ResourceManager Failover detection on the client
> -----------------------------------------------------------
>
>                 Key: YARN-4496
>                 URL: https://issues.apache.org/jira/browse/YARN-4496
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: client, resourcemanager
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>
> HDFS deployments can currently use the {{RequestHedgingProxyProvider}} to 
> improve Namenode failover detection in the client. It does this by 
> concurrently trying all namenodes and picks the namenode that returns the 
> fastest with a successful response as the active node.
> It would be useful to have a similar ProxyProvider for the Yarn RM (it can 
> possibly be done by converging some the class hierarchies to use the same 
> ProxyProvider)
> This would especially be useful for large YARN deployments with multiple 
> standby RMs where clients will be able to pick the active RM without having 
> to traverse a list of configured RMs. 



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