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https://issues.apache.org/jira/browse/HBASE-12133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14154409#comment-14154409
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stack commented on HBASE-12133:
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Thanks for contrib. Where would we use it do you think? How better than the
histograms we currently use? On the setMin and setMax, what do you think of
the discussion on the end of this blog discussion an implementation that looks
a little similar -- spinning until we can successfully CAS the value --
http://gridgain.blogspot.com/2011/06/even-better-atomicinteger-and.html
> Add FastLongHistogram for metric computation
> --------------------------------------------
>
> Key: HBASE-12133
> URL: https://issues.apache.org/jira/browse/HBASE-12133
> Project: HBase
> Issue Type: New Feature
> Components: metrics
> Affects Versions: 0.98.8
> Reporter: Yi Deng
> Assignee: Yi Deng
> Priority: Minor
> Labels: histogram, metrics
> Fix For: 0.98.8
>
> Attachments:
> 0001-Add-FastLongHistogram-for-fast-histogram-estimation.patch
>
>
> FastLongHistogram is a thread-safe class that estimate distribution of data
> and computes the quantiles. It's useful for computing aggregated metrics like
> P99/P95.
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