I have recently removed the old opscenter and installed new opscenter Opscenter 5.1. When I am trying to add existing cluster to opscenter I keep getting error "Error creating cluster: Timeout while adding cluster. Please check the log for details on the problem."
The opscenter logs
2015-03-06 21:37:56+0000  WARN: Unable to find a matching cluster for node with IP [u'xx.xxx.x.177', u'fe80:0:0:0:8d1:ff:fe01:a40e%2', u'0:0:0:0:0:0:0:1%1', u'127.0.0.1']; the message was [u'5.1.0', u'/1540438085/conf']. This usually indicates that an OpsCenter agent is still running on an old node that was decommissioned or is part of a cluster that OpsCenter is no longer monitoring.
This message keeps repeating
The datastax agent logs
ERROR [Initialization] 2015-03-06 21:41:42,414 Can't connect to Cassandra, retrying com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /127.0.0.1:9042 (com.datastax.driver.core.TransportException: [/127.0.0.1:9042] Cannot connect)) at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:220
Although the agent says its not able to connect to cassandra I am able to connect to cluster using the DevCenter. The nodetool status looks good.
I tried restarting the agents and opscenter without any success
The previous opscenter version was working fine before upgrading to OpsCenter 5.1 Datastax cassandra version being used: 4.0.1