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Posted to commits@cassandra.apache.org by "Benedict (JIRA)" <ji...@apache.org> on 2014/06/23 21:14:25 UTC

[jira] [Commented] (CASSANDRA-7436) Dtest for tracking metrics regressions

    [ https://issues.apache.org/jira/browse/CASSANDRA-7436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14041153#comment-14041153 ] 

Benedict commented on CASSANDRA-7436:
-------------------------------------

I think I'd prefer to work this into a performance regression suite off the back of the performance test framework, where we collect JMX stats along with our other data for a standardized set of stress runs. We can then post process the results to check it's within tolerance of prior runs. I suspect this would be too noisy for a dtest, and not actually that useful without a long enough test to create a continuum of values.

> Dtest for tracking metrics regressions
> --------------------------------------
>
>                 Key: CASSANDRA-7436
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7436
>             Project: Cassandra
>          Issue Type: Test
>            Reporter: Ryan McGuire
>
> We should create a dtest that runs a small load test and collects a bunch of the JMX metrics and introduce assertions to ensure they are roughly the same every time.



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