Adrian Muraru created HBASE-7309:
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Summary: Metrics refresh-task is not canceled when regions are
closed, leaking HRegion objects
Key: HBASE-7309
URL: https://issues.apache.org/jira/browse/HBASE-7309
Project: HBase
Issue Type: Bug
Components: metrics, regionserver
Affects Versions: 0.94.3, 0.92.2
Reporter: Adrian Muraru
Priority: Critical
While investigating HBASE-7205 by repeatedly enabling and disabling one table
having 100 regions I noticed that closed HRegion objects are kept forever in
memory.
The memory analyzer tool indicates a reference to HRegion object in metrics
refresh-task ({{MetricsRegionWrapperImpl.HRegionMetricsWrapperRunnable}}) that
prevents the HRegion object to be collected.
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