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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13351) Annotate internal MasterRpcServices methods with admin priority
Date Tue, 07 Apr 2015 19:11:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14483833#comment-14483833

Josh Elser commented on HBASE-13351:

WFM, I've been waffling about whether or not this will actually have a perceived difference
(for the end-user/admin). I feel like if the master's handler threads are saturated, the fact
that RS can still chat with the master won't really matter.

Ultimately, I think HBASE-13375 would have a much bigger positive impact than this, but these
changes do have some net-positive effect.

> 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.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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