http://127.0.0.1:9222/counter/naive
  visitors sent 400, answered 400, errors 0
  highest number shown 113, distinct numbers 113
  visitors lost by the counter 287
http://127.0.0.1:9222/counter
  visitors sent 400, answered 400, errors 0
  highest number shown 400, distinct numbers 400
  visitors lost by the counter 0
