def servers
      @servers ||= begin
        dsn_list = ::JSON.parse(request.cookies['genghis_rb_servers'] || '[]')
        servers  = default_servers.merge(init_servers(dsn_list))
        servers.empty? ? init_servers(['localhost']) : servers # fall back to 'localhost'
      end
    end
def servers
      @servers ||= begin
        dsn_list = ::JSON.parse(request.cookies['genghis_rb_servers'] || '[]')
        servers  = default_servers.merge(init_servers(dsn_list))
        servers.empty? ? init_servers(['localhost']) : servers # fall back to 'localhost'
      end
    end
Server management