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https://issues.apache.org/jira/browse/HBASE-4487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13118189#comment-13118189
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Andrew Purtell commented on HBASE-4487:
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bq. I could not find the place where to mark it as "incompatible". Can you pl
tell me where to mark it as such?
This is a committer requirement Dhruba, don't worry about it, unless you
disagree about the characterization. There is a checkbox to mark when resolving
the issue and where the changelog line goes in CHANGES.txt is different.
> 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: 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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