# File lib/daemons/application_group.rb, line 143
    def create_monitor(an_app)
      if @monitor && options[:monitor]
        @monitor.stop
        @monitor = nil
      end

      if options[:monitor]
        opt = {}
        opt[:monitor_interval] = options[:monitor_interval] if options[:monitor_interval]
        @monitor = Monitor.new(an_app, opt)
        @monitor.start(self)
      end
    end