opscenter - Adding cluster: “Error creating cluster: Call to /cluster-configs timed out.”

(Continuing the discussion with the same title on the datastax forum). I was able to reproduce the issue where opscenter is unable to connect to a 2.0.1 cluster, using "Use existing cluster", failing with the message "Error creating cluster: Call to /cluster-configs timed out.". It is related to having "rpc_server_type: hsha" in cassandra.yaml.I reproduced it as follows:(1) Installed ubuntu 12.04 (x86-64 architecture) in qemu. Updated it to the latest version of all packages. Configured it with a static ip address (192.168.77.3). Qemu networkin...Read more