Lars Hofhansl created HBASE-11876:
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Summary: RegionScanner.nextRaw(...) should update metrics
Key: HBASE-11876
URL: https://issues.apache.org/jira/browse/HBASE-11876
Project: HBase
Issue Type: Bug
Affects Versions: 0.98.6
Reporter: Lars Hofhansl
I added the RegionScanner.nextRaw(...) to allow "smart" client to avoid some of
the default work that HBase is doing, such as {start|stop}RegionOperation and
synchronized(scanner) for each row.
Metrics should follow the same approach. Collecting them per row is expensive
and a caller should have the option to collect those later or to avoid
collecting them completely.
We can also save some cycles in RSRcpServices.scan(...) if we updated the
metric only once/batch instead of each row.
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