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Posted to yarn-issues@hadoop.apache.org by "Jian He (JIRA)" <ji...@apache.org> on 2016/01/15 03:04:40 UTC

[jira] [Assigned] (YARN-4496) Improve HA ResourceManager Failover detection on the client

     [ https://issues.apache.org/jira/browse/YARN-4496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jian He reassigned YARN-4496:
-----------------------------

    Assignee: Jian He  (was: Arun Suresh)

> 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: Jian He
>
> 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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