I'm in the process of monitoring Cassandra via CollectD, and I'm running into some problems with a particular MBean definition in collectd:
<MBean "cassandra-row-read-stage">
	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.

Eugen Paraschiv
Senior Java Programmer, Optaros
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