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From "Subru Krishnan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-5905) Update the RM webapp host that is reported as part of Federation membership to current primary RM's IP
Date Thu, 17 Nov 2016 20:56:59 GMT
Subru Krishnan created YARN-5905:
------------------------------------

             Summary: Update the RM webapp host that is reported as part of Federation membership
to current primary RM's IP
                 Key: YARN-5905
                 URL: https://issues.apache.org/jira/browse/YARN-5905
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: federation, resourcemanager
    Affects Versions: YARN-2915
            Reporter: Subru Krishnan
            Assignee: Subru Krishnan
            Priority: Minor


Currently when RM HA is enabled, the webapp host is randomly picked from one of the ensemble
RMs and relies on redirect to pick the active primary RM. This has a few shortcomings:
  * There's an overhead of additional network hop.
  * Sometimes the rmId selected might be an instance which is inactive/decommissioned
  * In few of our clusters, we have redirects disabled (either in client or server side) and
then the invocation fails.

This JIRA proposes updating the RM webapp host that is reported as part of Federation membership
to the current primary RM's IP.



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