GET FREE RECORDER (Myth Protocol)
Command arguments: none
List arguments: none
Asks the backend for a free recorder. The recorder ID, host address, and port returned may not be on the originally queried host, if slave backends are used. If no recorder is available, -1 will be returned for the port and the host will be "nohost"
This is similar to GET_NEXT_FREE_RECORDER except that it tries to get a recorder on the local machine if possible.
The recorder ID, host address of the backend to connect to, and the port of the backend to connect to