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From "Yi Deng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12133) Add FastLongHistogram for metric computation
Date Wed, 01 Oct 2014 06:43:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14154457#comment-14154457

Yi Deng commented on HBASE-12133:

About the results by QA.

How can I find which core test was failing? in my local machine, all tests under hadoop-common
were passed. My class is not used by other code yet.

[~manukranthk] how do you find the java warnings?

mvn findbugs:findbugs -X shows two warnings are not realted to my code.

> 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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