# File lib/active_support/vendor/memcache-client-1.7.4/memcache.rb, line 1024
    def mark_dead(error)
      @sock.close if @sock && !@sock.closed?
      @sock   = nil
      @retry  = Time.now + RETRY_DELAY

      reason = "#{error.class.name}: #{error.message}"
      @status = sprintf "%s:%s DEAD (%s), will retry at %s", @host, @port, reason, @retry
      @logger.info { @status } if @logger
    end