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https://issues.apache.org/jira/browse/HBASE-7216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13503625#comment-13503625
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Lars Hofhansl commented on HBASE-7216:
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Reasoning sounds good to me.
Do you have some benchmark numbers by any chance [~aoxiang]?
> sync hlog writer just after create it, so trigger addBlock and establish
> write pipeline before the first hlog sync
> ------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-7216
> URL: https://issues.apache.org/jira/browse/HBASE-7216
> Project: HBase
> Issue Type: Improvement
> Reporter: binlijin
> Attachments: HBASE-7216-94.patch, HBASE-7216.patch
>
>
> Current when hlog rollWriter:
> (1)createWriter will call ClientProtocol.create
> (2)first hlog sync will trigger ClientProtocol.addBlock and establish write
> pipeline
> we can sync the outputstream to force trigger ClientProtocol.addBlock and
> establish write pipeline before the first hlog sync
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