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https://issues.apache.org/jira/browse/HBASE-10791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13962720#comment-13962720
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Nicolas Liochon commented on HBASE-10791:
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The perfs are terrible when the two replicas are on the same RS. If they are on
different RS it becomes reasonable, but not perfect: I'm seeing a 15%
degradation, with the 2 RS located on the same machine.
> Add integration test to demonstrate performance improvement
> -----------------------------------------------------------
>
> Key: HBASE-10791
> URL: https://issues.apache.org/jira/browse/HBASE-10791
> Project: HBase
> Issue Type: Sub-task
> Components: Performance, test
> Affects Versions: hbase-10070
> Reporter: Nick Dimiduk
> Assignee: Nick Dimiduk
> Attachments: HBASE-10791.00.patch, HBASE-10791.01.patch,
> HBASE-10791.02.patch, HBASE-10791.03.patch, HBASE-10791.04.patch,
> HBASE-10791.05.patch, IntegrationTestRegionReplicaPerf.out
>
>
> It would be good to demonstrate that use of region replicas reduces read
> latency. PerformanceEvaluation can be used manually for this purpose, but
> it's not able to use ChaosMonkey. An integration test can set up the monkey
> actions and automate execution.
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