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https://issues.apache.org/jira/browse/HBASE-6619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13466306#comment-13466306
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Lars Hofhansl commented on HBASE-6619:
--------------------------------------
Patch looks good. I like delaying parsing to the actual reading. We're getting
way too many context switches otherwise (unless I misunderstand the existing
code).
The only question I have: Why not use an ExecutorService again, instead of the
manual round robin done by the patch?
> Do no unregister and re-register interest ops in RPC
> ----------------------------------------------------
>
> Key: HBASE-6619
> URL: https://issues.apache.org/jira/browse/HBASE-6619
> Project: HBase
> Issue Type: Bug
> Components: IPC/RPC, Performance
> Reporter: Karthik Ranganathan
> Assignee: Michal Gregorczyk
> Priority: Critical
> Fix For: 0.94.3, 0.96.0
>
> Attachments:
> 0001-jira-HBASE-6619-89-fb-Do-no-unregister-and-re-regist.patch
>
>
> While investigating perf of HBase, Michal noticed that we could cut about
> 5-40% (depending on number of threads) from the total get time in the RPC on
> the server side if we eliminated re-registering for interest ops.
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