Jerry He created HBASE-16882:
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Summary: Expose the number of open scanners on region server via
metics
Key: HBASE-16882
URL: https://issues.apache.org/jira/browse/HBASE-16882
Project: HBase
Issue Type: Improvement
Reporter: Jerry He
Assignee: Jerry He
Priority: Minor
Metrics on the number of open scanners and their live span on the region server
are useful in doing server performance diagnostics, and are useful in doing
client application diagnostics, profiling as well.
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