'dynamic_node_detection' specifies whether the Clustrix monitor should dynamically figure out what nodes there are, or just rely upon static information. 'health_check_port' specifies the port to be used when perforing the health check ping.
Make it configurable how many times a node may fail to respond on the health check port before it is considered to be down.
The monitor now pings the health check ports of the Clustrix nodes. A response translates to RUNNING and a non-response to DOWN.
