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From "Jerry He (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-16882) Expose the number of open scanners on region server via metics
Date Wed, 19 Oct 2016 20:43:59 GMT
Jerry He created HBASE-16882:
--------------------------------

             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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