new (MemCache::Server)

    # File lib/active_support/vendor/memcache-client-1.5.0/memcache.rb, line 749
        def initialize(memcache, host, port = DEFAULT_PORT, weight = DEFAULT_WEIGHT)
          raise ArgumentError, "No host specified" if host.nil? or host.empty?
          raise ArgumentError, "No port specified" if port.nil? or port.to_i.zero?

          @memcache = memcache
          @host   = host
          @port   = port.to_i
          @weight = weight.to_i

          @multithread = @memcache.multithread
          @mutex = Mutex.new

          @sock   = nil
          @retry  = nil
          @status = 'NOT CONNECTED'
        end