And yet OpsCenter shows graphs with ever-changing metrics that show recent 
performance. Does OpsCenter not get its stats from JMX?

From: Robert Coli [mailto:rc...@eventbrite.com]
Sent: Wednesday, August 27, 2014 12:56 PM
To: user@cassandra.apache.org
Subject: Re: How often are JMX Cassandra metrics reset?

On Wed, Aug 27, 2014 at 12:38 PM, Donald Smith 
<donald.sm...@audiencescience.com<mailto:donald.sm...@audiencescience.com>> 
wrote:
I’m using JMX to retrieve Cassandra metrics.   I notice that  Max and Count are 
cumulative and aren’t reset.    How often are the stats for Mean, 
99tthPercentile, etc reset back to zero?

If they're like the old latency numbers, they are from node startup time and 
are never reset.

=Rob

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