Thank you for the response. Since the time of this question, we've
identified a number of areas that needed improving and have helped
things along quite a bit. To answer your question, we were seeing both
ParNew and CMS. There were no errors in the log, and all the nodes have
been up.
Howe
For background, a discussion on estimating working set
http://www.mail-archive.com/user@cassandra.apache.org/msg25762.html . You can
also just look at the size of tenured heap after a CMS.
Are you seeing lots of ParNew or CMS ?
GC activity is a result of configuration *and* workload. Look in y
Hello,
Our Cassandra cluster has, relatively recently, started experiencing
memory pressure that I am in the midsts of diagnosing. Our system has
uneven levels of traffic, relatively light during the day, but extremely
heavy during some overnight processing. We have started getting a message
