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:[email protected]] Sent: Wednesday, August 27, 2014 12:56 PM To: [email protected] Subject: Re: How often are JMX Cassandra metrics reset? On Wed, Aug 27, 2014 at 12:38 PM, Donald Smith <[email protected]<mailto:[email protected]>> 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
