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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, 14 Apr 2015 21:54:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14494984#comment-14494984
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Josh Elser commented on HBASE-13351:
------------------------------------

bq. I believe meta is co-located with master (as per HBASE-10569)

Boom. This is the hunch I had, but I had no idea where to start looking to verify. Thanks!

bq. this call should be going thru short-circuit connection and not RPC layer..Let me take
a look.

Absolutely. We shouldn't be making a separate RPC for this. MetaTableAccessor could hopefully
shortcircuit out if we're running inside the Master (although I'm not directly sure how we
would determine this).

> 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.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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