Bryan Beaudreault created HBASE-27378:
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Summary: Add query rate metric for filtered reads
Key: HBASE-27378
URL: https://issues.apache.org/jira/browse/HBASE-27378
Project: HBase
Issue Type: New Feature
Reporter: Bryan Beaudreault
We have very useful metrics ServerReadQueryPerSecond and
ServerWriteQueryPerSecond. The benefit of these over readRequestCount and
writeRequestCount are that they are stable over the life of the regionserver.
The readRequestCount and writeRequestCount can be heavily skewed when regions
move around and the counters get decremented. We have filteredReadRequestCount
which has the same issue. It'd be nice to have a stable rate for this metric,
as I find that filtered reads are almost as costly as non-filtered.
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