Varun Saxena commented on YARN-2136:

However, if we do flip the order of these statements, I think we can then have 
a FENCED state because when we stop the dispatcher queue, it will be drained 
first and hence the pending events will be processed first. In this case, 
store/update will be sent to ZK.  What's your opinion, [~jianhe] and [~sunilg] ?

> 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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