def nodes
      nodes = []
      cache 'nodes' do
        connection.send_data("nodes")
        while ( ( line = connection.read_line ) != "." )
          nodes << line
        end
        nodes
      end
    end
def nodes
      nodes = []
      cache 'nodes' do
        connection.send_data("nodes")
        while ( ( line = connection.read_line ) != "." )
          nodes << line
        end
        nodes
      end
    end
Get a list of all available nodes