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https://issues.apache.org/jira/browse/YARN-1029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13857980#comment-13857980
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Karthik Kambatla commented on YARN-1029:
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RMStateStoreOperationFailedEvent is not always fatal and might not require
terminating the RM; events of type RMStateStoreOperationFailedEventType.FENCED
require the RM to transition to standby, and terminate the RM if the transition
fails.
bq. Not much use in the store sending an event to the RM and then the RM
sending an event to itself again, right?
Right. That was the reason for my reluctance earlier. But, I guess this
addresses any future fatal events.
> Allow embedding leader election into the RM
> -------------------------------------------
>
> Key: YARN-1029
> URL: https://issues.apache.org/jira/browse/YARN-1029
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Bikas Saha
> Assignee: Karthik Kambatla
> Attachments: embedded-zkfc-approach.patch, yarn-1029-0.patch,
> yarn-1029-0.patch, yarn-1029-1.patch, yarn-1029-2.patch, yarn-1029-3.patch,
> yarn-1029-4.patch, yarn-1029-5.patch, yarn-1029-approach.patch
>
>
> It should be possible to embed common ActiveStandyElector into the RM such
> that ZooKeeper based leader election and notification is in-built. In
> conjunction with a ZK state store, this configuration will be a simple
> deployment option.
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