mnpoonia commented on code in PR #8389:
URL: https://github.com/apache/hbase/pull/8389#discussion_r3781475516
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hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperStub.java:
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@@ -87,6 +87,16 @@ public long getStoreFileSize() {
return 1900;
}
+ @Override
Review Comment:
This verifies source export from a fixed wrapper stub, but it does not
exercise `MetricsRegionServerWrapperImpl` aggregation or ratio calculation.
Could we extend `TestMetricsRegionServerAggregate` to assert the summed
compressed and uncompressed sizes, along with the resulting `uncompressed /
compressed` ratio, including the empty-aggregate case?
Using stores with different individual ratios would also verify that this
remains a weighted aggregate rather than an average of per-store ratios.
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