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https://issues.apache.org/jira/browse/HBASE-10010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13829707#comment-13829707
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Himanshu Vashishtha commented on HBASE-10010:
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I have seen this latency in some experiments I did a while ago.
File creation (along with block allocation) is costly, takes about 300ms on
average. And block allocation is done on first write.
I am good with this change in general (will take a look at the patch in detail
tomorrow).
> 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.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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