code: public synchronized void onRequestSucceeded(long responeLatencyInMicros) {
  		executing.decrement();
  		succeeded.increment();
  		counter.addMicro(responeLatencyInMicros);
  		histogram.add(responeLatencyInMicros);
  	}
docs: Registers the successful completion of execution of request.
  
  @param responeLatencyInMicros
  The response latency, in nanoseconds.