virajjasani commented on a change in pull request #787: HBASE-23245 :
MutableHistogram constructor changes and provide Histog…
URL: https://github.com/apache/hbase/pull/787#discussion_r342911949
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File path:
hbase-metrics/src/test/java/org/apache/hadoop/hbase/metrics/impl/TestHistogramImpl.java
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@@ -63,19 +63,19 @@ public void testSnapshot() {
Snapshot snapshot = histogram.snapshot();
assertEquals(100, snapshot.getCount());
- assertEquals(50, snapshot.getMedian());
+ assertEquals(49, snapshot.getMedian());
Review comment:
getMin()=0, getMax()=99. Hence, ideally getMedian() should be 49.
All these values are changed after fixing:
https://github.com/apache/hbase/pull/787/files#diff-ac08d4adf915ba5ccb72db551e2fef34R39
(which was incorrect before because without long conversion, the value is
numeric overload and results -4)
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