getsize per-CF metric incorrectly counts compaction related reads as well
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Key: HBASE-5292
URL: https://issues.apache.org/jira/browse/HBASE-5292
Project: HBase
Issue Type: Bug
Reporter: Kannan Muthukkaruppan
The per-CF "getsize" metric's intent was to track bytes returned per-CF. [Note:
We already have metrics to track # of HFileBlock's read for compaction vs.
non-compaction cases -- e.g., compactionblockreadcnt vs. fsblockreadcnt.]
However, currently, the metric gets updated for both client initiated Get/Scan
operations as well for compaction related reads. The metric is updated in
StoreScanner.java:next() when the Scan query matcher returns an INCLUDE* code
via a:
HRegion.incrNumericMetric(this.metricNameGetsize, copyKv.getLength());
We should not do the above in case of compactions.
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