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https://issues.apache.org/jira/browse/HBASE-18144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16034046#comment-16034046
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Allan Yang commented on HBASE-18144:
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Sorry, stack, I'm still not get it. As you said, reentrant read/write lock is
about 20% slower than exclusive lock but locking time only takes a very small
proportion in the whole write path, why using exclusive lock improves the case?
> Forward-port the old exclusive row lock; there are scenarios where it
> performs better
> -------------------------------------------------------------------------------------
>
> Key: HBASE-18144
> URL: https://issues.apache.org/jira/browse/HBASE-18144
> Project: HBase
> Issue Type: Bug
> Components: Increment
> Affects Versions: 1.2.5
> Reporter: stack
> Assignee: stack
> Fix For: 2.0.0, 1.3.2, 1.2.7
>
>
> Description to follow.
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