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From "Subru Krishnan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (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 23:55:59 GMT

     [ https://issues.apache.org/jira/browse/YARN-5905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Subru Krishnan updated YARN-5905:
---------------------------------
    Attachment: YARN-5905-YARN-2915-v1.patch

Missed the branch suffix so uploading the same patch with the right branch name.

> 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
>         Attachments: YARN-5905-YARN-2915-v1.patch, YARN-5905-v1.patch
>
>
> 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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