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https://issues.apache.org/jira/browse/HBASE-20459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16445890#comment-16445890
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Mike Drob commented on HBASE-20459:
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Fix looks fine. Also update the MemoryLayout class too, it has the same issue.
Looks like this affects branch-2 as well.
> Majority of scan CPU time in HBase-1 spent in size estimation
> -------------------------------------------------------------
>
> Key: HBASE-20459
> URL: https://issues.apache.org/jira/browse/HBASE-20459
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 1.4.3
> Reporter: Lars Hofhansl
> Assignee: Lars Hofhansl
> Priority: Major
> Fix For: 1.5.0, 1.4.4
>
> Attachments: 20459.txt, Screenshot_20180419_162559.png
>
>
> See attached screenshot. Will look into a fix later.
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