It would help if you can provide some log messages from the GCInspector so people can see how much GC is going on.
Cheers ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 17 Jun 2011, at 02:46, Sebastien Coutu wrote: > Hi Everyone, > > I'm seeing Cassandra GC a lot and I would like to tune the Young space and > the Tenured space. Anyone would have recommendations on the NewRatio or > NewSize/MaxNewSize to use for an environment where Cassandra has several > column families and in which we are doing a mixed load of reading and > writing. The JVM has 8G of heap space assigned to it and there are 9 nodes to > this cluster. > > Thanks for the comments! > > Sébastien Coutu