    # File lib/ramaze/cache/memcache.rb, line 138
          def cache_setup(hostname, username, appname, cachename)
            # Validate the maximum TTL
            if options[:expires_in] > MAX_TTL
              raise(ArgumentError, "The maximum TTL of Memcache is 30 days")
            end

            options[:namespace] = [
              hostname, username, appname, cachename
            ].compact.join('-')

            @client = ::Dalli::Client.new(options[:servers], options)
          end