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https://issues.apache.org/jira/browse/YARN-2136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14086668#comment-14086668
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Karthik Kambatla commented on YARN-2136:
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bq. On a second check, state-store is actually already stopped/closed when RM
gets fenced, which means no more store operation can be performed once RM gets
fenced. Karthik Kambatla, is this the case?
Yes. That is correct.
I was open to adding the FENCED state to future-proof against us not stopping
the store when RM transitions to Standby, but I agree we could probably look
into this when we get there.
> RMStateStore can explicitly handle store/update events when fenced
> ------------------------------------------------------------------
>
> Key: YARN-2136
> URL: https://issues.apache.org/jira/browse/YARN-2136
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Jian He
>
> RMStateStore can choose to handle/ignore store/update events upfront instead
> of invoking more ZK operations if state store is at fenced state.
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