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https://issues.apache.org/jira/browse/HBASE-21748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16749375#comment-16749375
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Andrew Purtell commented on HBASE-21748:
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A patch for branch-1 is very simple, just a few lines of diff. I'm testing it,
will attach once I can confirm tests pass. However I don't think branch-1 has
the same exposure to the perf problem. I'm not sure how to demonstrate a
benefit. I will try some simple benchmarking but may need to resort to JMH to
quantify it to any degree of certainty. Fortunately the change is simple, easy
to reason about, and so no harm to include regardless (IMHO).
> Port HBASE-21738 (Remove all the CLSM#size operation in our memstore because
> it's an quite time consuming.) to branch-1
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-21748
> URL: https://issues.apache.org/jira/browse/HBASE-21748
> Project: HBase
> Issue Type: Sub-task
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Major
> Fix For: 1.5.0
>
>
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