# File lib/raemon/master.rb, line 44
    def start(num_workers, worker_class)
      logger.info "=> Starting #{name} with #{num_workers} worker(s)"
      instrument 'master.start', :pid => master_pid

      @num_workers  = num_workers
      @worker_class = worker_class

      ensure_worker_class_is_valid

      master_loop!
    end