Abhishek Singh Chouhan created HBASE-22045:
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Summary: 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: 2.1.3, 1.4.9, 2.0.0, 1.3.3, 1.5.0, 3.0.0, 2.2.1
Reporter: Abhishek Singh Chouhan
Assignee: Abhishek Singh Chouhan
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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