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https://issues.apache.org/jira/browse/HBASE-4487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13118967#comment-13118967
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dhruba borthakur commented on HBASE-4487:
-----------------------------------------
Hi Lars, this is a performance fix, so it is unlikely to be a candidate for
0.92. How about we make frequent releases (say 0.94? coming out sooner rather
than later) rather than porting these to existing release-candidates?
> The increment operation can release the rowlock before sync-ing the Hlog
> ------------------------------------------------------------------------
>
> Key: HBASE-4487
> URL: https://issues.apache.org/jira/browse/HBASE-4487
> Project: HBase
> Issue Type: Improvement
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Fix For: 0.94.0
>
> Attachments: 4487-v7.txt, appendNoSync4.txt, appendNoSync5.txt,
> appendNoSync6.txt
>
>
> This allows for better throughput when there are hot rows.I have seen this
> change make a single row update improve from 400 increments/sec/server to
> 4000 increments/sec/server.
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