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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-149) ResourceManager (RM) High-Availability (HA)
Date Mon, 22 Jul 2013 20:40:51 GMT

    [ https://issues.apache.org/jira/browse/YARN-149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13715622#comment-13715622

Karthik Kambatla commented on YARN-149:

Bikas - I believe the following lines do mention it, but not as explicitly as your comment.
Might help to be more explicit.

External RPC services accept client requests for the active RM instance and reject client
requests for the standby RM. It is expected that the standby RM will receive no external stimulus
and hence there will be no internal activity *(services etc.)* on the standby RM.
> ResourceManager (RM) High-Availability (HA)
> -------------------------------------------
>                 Key: YARN-149
>                 URL: https://issues.apache.org/jira/browse/YARN-149
>             Project: Hadoop YARN
>          Issue Type: New Feature
>            Reporter: Harsh J
>            Assignee: Bikas Saha
>         Attachments: rm-ha-phase1-approach-draft1.pdf, rm-ha-phase1-draft2.pdf, YARN
ResourceManager Automatic Failover-rev-07-21-13.pdf
> This jira tracks work needed to be done to support one RM instance failing over to another
RM instance so that we can have RM HA. Work includes leader election, transfer of control
to leader and client re-direction to new leader.

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