Administrators may want to permanently remove a host from the farm. This is normally required if the host's responsibilities as a Worker has come to an end, or no longer exists. Removing a Worker host places it in a list of banned hosts and the Supervisor will no longer track the host, even if auto-discovery would normally register such a host with the Supervisor. To remove a host, use the qbadmin command.
Worker host removal
% qbadmin worker --remove worker_host
Where worker_host is the hostname or IP address of a Worker.
Qube administrators may also clear all banned hosts so that they will be able to register with the Supervisor.
Clearing the list of banned hosts
% qbadmin worker --clearbanned