def version
      values = {}
      ring.servers.each do |server|
        values["#{server.name}"] = server.alive? ? server.request(:version) : nil
      end
      values
    end
def version
      values = {}
      ring.servers.each do |server|
        values["#{server.name}"] = server.alive? ? server.request(:version) : nil
      end
      values
    end
Version of the memcache servers.