Has anyone done any tuning on the jvm gc options or are the options included in bin/cassandra.in.sh basically the best choice?
I'm working on getting our latency as consistent as possible, and the gc likes to kick off 60+ms periods of unavailability for a node, which for my application leads to a reasonable number of timed out requests. Outside of the gc event, we get good responses. I'm happy with reduced throughput for shorter pauses, so I'm going to do the standard jvm gc tuning guide[0] for short pauses, curious if anyone else has gone down this path and gotten gc pauses consistent and low or if what's in bin/cassandra.in.sh is basically the best I should expect. (Anyone tried jrockit?) [0]http://java.sun.com/javase/technologies/hotspot/gc/gc_tuning_6.html
