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https://issues.apache.org/jira/browse/HBASE-13351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14500275#comment-14500275
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Josh Elser commented on HBASE-13351:
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Ahh, forgot about that. FTR, it looks like 20 isn't enough for some of these 
still failing tests. Bumped up to 40 makes them pass. The short-circuit 
connection fix should help keep an upper bound there, so I'm not too worried 
about it ATM.

> Annotate internal MasterRpcServices methods with admin priority
> ---------------------------------------------------------------
>
>                 Key: HBASE-13351
>                 URL: https://issues.apache.org/jira/browse/HBASE-13351
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>             Fix For: 2.0.0, 1.1.0
>
>         Attachments: HBASE-13351-v1.patch, HBASE-13351-v2.patch, 
> HBASE-13351-v3.patch, HBASE-13351-v4.patch, HBASE-13351.patch
>
>
> HBASE-12071, among other things, introduced annotating RPC methods to give 
> certain methods priority over others. Namely, this helps ensure that client 
> requests cannot starve out internal RPC between master and regionserver.
> Similarly, we can do the same thing for Master RPC methods that are invoked 
> by RS's.



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