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https://issues.apache.org/jira/browse/YARN-2019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13990050#comment-13990050
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Tsuyoshi OZAWA commented on YARN-2019:
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This means that all RM can terminates when ZK cannot be accessed from RMs. If
we should retry until ZK come up, one solution is handling
STATE_STORE_OP_FAILED in RMFatalEventDispatcher and going into standby state.
Please see an attached patch .
> Retrospect on decision of making RM crashed if any exception throw in
> ZKRMStateStore
> ------------------------------------------------------------------------------------
>
> Key: YARN-2019
> URL: https://issues.apache.org/jira/browse/YARN-2019
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Junping Du
> Priority: Critical
> Labels: ha
> Attachments: YARN-2019.1-wip.patch
>
>
> Currently, if any abnormal happens in ZKRMStateStore, it will throw a fetal
> exception to crash RM down. As shown in YARN-1924, it could due to RM HA
> internal bug itself, but not fatal exception. We should retrospect some
> decision here as HA feature is designed to protect key component but not
> disturb it.
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