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https://issues.apache.org/jira/browse/HBASE-8752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13713868#comment-13713868
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Sergey Shelukhin commented on HBASE-8752:
-----------------------------------------

I ran some small perf tests in the original JIRA, if you want to take a look.
I did see the intended effect of utilizing more disks in many-disk case w/more 
handlers
                
> Backport HBASE-6466 to 0.94
> ---------------------------
>
>                 Key: HBASE-8752
>                 URL: https://issues.apache.org/jira/browse/HBASE-8752
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>    Affects Versions: 0.94.8
>            Reporter: Richard Ding
>            Assignee: Richard Ding
>            Priority: Minor
>             Fix For: 0.94.11
>
>         Attachments: HBASE-8752.patch
>
>
> 0.94 already supports multi-thread compaction. It will be good it also 
> supports multi-thread memstore flush, so that users can tune the number of 
> threads for both compaction and flushing when running a heavy-write load.

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