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Posted to commits@cassandra.apache.org by "Donald Smith (JIRA)" <ji...@apache.org> on 2014/12/05 19:30:12 UTC

[jira] [Created] (CASSANDRA-8433) Add jmx control to reset lifetime metrics to zero

Donald Smith created CASSANDRA-8433:
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             Summary: Add jmx control to reset lifetime metrics to zero
                 Key: CASSANDRA-8433
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8433
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Donald Smith
            Priority: Minor


Often I change some parameter in cassandra, in the OS, or in an external component and want to see the effect on cassandra performance.  Because some the jmx metrics are for the lifetime of the process, it's hard to see the effect of changes.  It's inconvenient to restart all the nodes. And if you restart only some nodes (as I often do) then only those metrics reset to zero.

The jmx interface should provide a way to reset all lifetime metrics to zero.



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