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https://issues.apache.org/jira/browse/YARN-1121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13808704#comment-13808704
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Zhijie Shen commented on YARN-1121:
-----------------------------------
If we add the "drain" feature for AsyncDispatcher, DrainDispatcher seems to be
unnecessary. OTOH, we can promote DrainDispatcher to the production code, and
use it directly. I incline to the latter choice.
> RMStateStore should flush all pending store events before closing
> -----------------------------------------------------------------
>
> Key: YARN-1121
> URL: https://issues.apache.org/jira/browse/YARN-1121
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Affects Versions: 2.1.0-beta
> Reporter: Bikas Saha
> Assignee: Jian He
> Fix For: 2.2.1
>
> Attachments: YARN-1121.1.patch, YARN-1121.2.patch
>
>
> on serviceStop it should wait for all internal pending events to drain before
> stopping.
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