Hi, I'm in the process of monitoring Cassandra via CollectD, and I'm running into some problems with a particular MBean definition in collectd: ObjectName "org.apache.cassandra.concurrent:type=ROW-READ-STAGE" InstancePrefix "cassandra_row_read_stage" Type "cassandra_stage" Attribute "ActiveCount" Attribute "PendingTasks" Attribute "CompletedTasks" The problem is: *GenericJMXConfMBean: No MBean matched the ObjectName org.apache.cassandra.concurrent:type=ROW-READ-STAGE* Is there anything that jumps out with that definition? Any help is appreciated. Thanks. Eugen. -- Eugen Paraschiv Senior Java Programmer, Optaros Mobile: +40728896170 Blog: www.baeldung.com Twitter: https://twitter.com/baeldung