Arun Suresh created YARN-4496:
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Summary: 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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