Hi All, We are evaluating our JVM heap size configuration on Cassandra 1.2.8 and would like to get some feedback from the community as to what the proper JVM heap size should be for cassandra nodes deployed on to Amazon EC2. We are running m2.4xlarge EC2 instances (64GB RAM, 8 core, 2 x 840GB disks) --so we will have plenty of RAM. I've already consulted the docs at http://www.datastax.com/documentation/cassandra/1.2/mobile/cassandra/operations/ops_tune_jvm_c.html but would love to hear what is working or not working for you in the wild. Since Datastax cautions against using more than 8GB, I'm wondering if it is even advantageous to use even slightly more.
Thanks, -David Laube
