Hi, We've added Cassandra performance monitoring and anomaly detection to SPM <http://sematext.com/spm/> recently. Here's the announcement with several screenshots:
http://blog.sematext.com/2014/06/02/announcement-cassandra-performance-monitoring-in-spm/ Storm, Kafka, Elasticsearch, Hadoop... monitoring is in there, too, in case you use that with Cassandra. Actually, this may be of interest if you are running the Kafka+Storm+Cassandra (or Kafka+Storm+Elasticsearch) combo: http://blog.sematext.com/2014/06/11/monitoring-kafka-storm-and-cassandra-together-with-spm/ Otis
