in case the community is interested, my gmetric collector:
http://github.com/scottnotrobot/gmetric/tree/master/database/cassandra/note i have only tested with a special csv mode of gmetric... you can bypass this mode and use vanilla gmetric with --nocsv, but beware it will generate over 100 forks on a trivial cassandra schema. the patch for the csv enabled gmetric is here:
http://bugzilla.ganglia.info/cgi-bin/bugzilla/show_bug.cgi?id=273 -scott