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From Brandon Wilson <>
Subject Computations behind JMX Metrics
Date Fri, 01 Mar 2013 14:26:22 GMT
I have a question regarding the JMX metrics exposed by Accumulo. I believe
the metrics that are reported as averages (e.g., ScanAvgTime) are computed
as weighted averages over all time, as opposed to a arithmetic mean of a
set of scan times over a given time window.  Am I correct that the weighted
average calculation is actual the weighted average since the tserver

The average formula I suspect is being use is here:<,,SSL+redir.aspx?C=c6-KKQhSR0qXLqfNtF0WFWOUgfkZ6s8ILg3UmiJgkZ-j_nin7It-AddWEsRTPiKlFa7QDfn4H8s.&>

Am I on the right track here?


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