Could not connect Cassandra opscenter agents on remote sites

Question

I have several EC2 instances in which cassandra failed to fail. I finished the instances and the machines no longer exist.

Opscenter yanks me because the “agents could not connect” on these machines.

Machines do not appear in nodepool statusor in the table system.peers.

Where does cassandra opscenter store the node list to connect, so can I remove these zombie nodes?

Answer 1

This is actually a bug in OpsCenter, which will be addressed in the future. To reduce the current problem, simply restart OpsCenter and these messages should stop.