[jira] [Created] (HBASE-27378) Add query rate metric for filtered reads

["Bryan Beaudreault (Jira)" <ji...@apache.org>]

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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