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https://issues.apache.org/jira/browse/HBASE-22045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Abhishek Singh Chouhan resolved HBASE-22045.
--------------------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
> Mutable range histogram reports incorrect outliers
> --------------------------------------------------
>
> Key: HBASE-22045
> URL: https://issues.apache.org/jira/browse/HBASE-22045
> Project: HBase
> Issue Type: Bug
> Affects Versions: 3.0.0, 1.5.0, 2.0.0, 1.4.9, 2.1.3, 2.2.1
> Reporter: Abhishek Singh Chouhan
> Assignee: Abhishek Singh Chouhan
> Priority: Major
> Fix For: 3.0.0, 1.5.0, 1.4.10, 2.3.0, 2.1.5, 2.2.1
>
> Attachments: HBASE-22045.master.001.patch
>
>
> MutableRangeHistogram during the snapshot calculates the outliers (eg.
> mutate_TimeRange_600000-inf) and adds the counter with incorrect calculation
> by using the overall count of event and not the number of events in the
> snapshot.
> {code:java}
> long val = histogram.getCount();
> if (val - cumNum > 0) {
> metricsRecordBuilder.addCounter(
> Interns.info(name + "_" + rangeType + "_" + ranges[ranges.length -
> 1] + "-inf", desc),
> val - cumNum);
> }{code}
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