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https://issues.apache.org/jira/browse/HBASE-10010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13831205#comment-13831205
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Lars Hofhansl commented on HBASE-10010:
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Hmm... In 0.94 we sync (flush) outside of the update lock (see HLog.syncer(long
txid)). Is this a different issue?
> eliminate the put latency spike on the new log file beginning
> -------------------------------------------------------------
>
> Key: HBASE-10010
> URL: https://issues.apache.org/jira/browse/HBASE-10010
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Affects Versions: 0.94.13
> Reporter: Liang Xie
> Assignee: Liang Xie
> Attachments: HBase-10010-0.94-v2.txt, HBase-10010-0.94-v3.txt,
> HBase-10010-0.94.txt, HBase-10010-trunk-v2.txt, HBase-10010-trunk.txt
>
>
> In deed, the original finding came from fb, see HBASE-6813 for detailed
> discussion.
> Through this improvement doesn't expect obvious gain on 95th or 99th latency,
> it still could make the response time more stable to me.
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