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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11048) Support setting custom priority per client RPC
Date Thu, 22 May 2014 17:59:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14006198#comment-14006198
] 

Andrew Purtell commented on HBASE-11048:
----------------------------------------

So this is all you need to achieve your objectives [~jesse_yates] I assume.

I looked at the 0.98 patch. The changes are additions to existing interfaces or changes to
classes with an internal audience. I will compare the next RC against earlier releases looking
for variations in per op latencies. We can sink the RC and back out the change if there is
a significant regression. 

Any objections to committing? 

> Support setting custom priority per client RPC
> ----------------------------------------------
>
>                 Key: HBASE-11048
>                 URL: https://issues.apache.org/jira/browse/HBASE-11048
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client
>    Affects Versions: 0.99.0, 0.98.2
>            Reporter: Jesse Yates
>            Assignee: Jesse Yates
>              Labels: Phoenix
>             Fix For: 0.99.0, 0.98.3
>
>         Attachments: hbase-11048-0.98-v0.patch, hbase-11048-trunk-v0.patch, hbase-11048-trunk-v1.patch
>
>
> Servers have the ability to handle custom rpc priority levels, but currently we are only
using it to differentiate META/ROOT updates from replication and other 'priority' updates
(as specified by annotation tags per RS method). 
> However, some clients need the ability to create custom handlers (e.g. PHOENIX-938) which
can really only be cleanly tied together to requests by the request priority. The disconnect
is in that there is no way for the client to overwrite the priority per table - the PayloadCarryingRpcController
will always just set priority per ROOT/META and otherwise just use the generic priority.



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