Enhance HRegionServerMetrics for Long-running Stats
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Key: HBASE-3102
URL: https://issues.apache.org/jira/browse/HBASE-3102
Project: HBase
Issue Type: Improvement
Components: regionserver
Reporter: Nicolas Spiegelberg
Assignee: Nicolas Spiegelberg
Fix For: 0.90.0
A useful metric to observe track is compaction count + duration. Since
compactions are long running and only happen infrequently, the avg/opcount
stats are should be reset longer than the default polling period (5 sec). In
addition to 'hbase.period', we should allow a different duration after which
long-running metrics should expire. This would also fix our existing metrics
problem where min/max stats are never reset until the process is
restarted/upgraded.
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