private void schedulePeriodicTasks() {
        // Heartbeat monitoring
        scheduler.scheduleAtFixedRate(this::checkHeartbeats, 30, 30, TimeUnit.SECONDS);
        
        // Registration monitoring
        scheduler.scheduleAtFixedRate(this::monitorRegistrations, 10, 10, TimeUnit.SECONDS);
    }
    
    public CompletableFuture<WitnessRegistration> registerForNotifications(
            String shareName, 

        while (e != null) {
          println(e)
          e = e.cause
        }
      }
    }
    println()
  }
  time = System.currentTimeMillis() - time
  println("Time: ${time.toDouble() / 1000} seconds\n")
}

fun main() {
  Security.insertProviderAt(OpenSSLProvider(), 1)
  var bootstrapClient = OkHttpClient()
  var names = listOf("google.com", "graph.facebook.com", "sdflkhfsdlkjdf.ee")
  try {

                        barrier.await(1, SECONDS);

                        // WAIT #2
                        barrier.await(1, SECONDS);
                        assertTrue(executor.isShutdown());
                        assertFalse(executor.isTerminated());

                        // WAIT #3
                        barrier.await(1, SECONDS);
                        return null;
                      });

				continue
			}

			// If we are doing batching, we should wait
			// at least for a second, before sending.
			// Even if there is nothing in the queue.
			if h.batchSize > 1 && time.Since(lastBatchProcess) < time.Second {
				continue
			}
		}

		// if we have reached the count send at once
		// or we have crossed last second before batch was sent, send at once
		lastBatchProcess = time.Now()

		var retries int

		Name:      lastActivityTime,
		Help:      "Time elapsed (in nano seconds) since last scan activity",
		Type:      gaugeMetric,
	}
}

func getBucketUsageLastScanActivityMD() MetricDescription {
	return MetricDescription{
		Namespace: bucketMetricNamespace,
		Subsystem: usageSubsystem,
		Name:      lastActivityTime,
		Help:      "Time elapsed (in nano seconds) since last scan activity",
		Type:      gaugeMetric,
	}
}

	// prepare getElapsedTime() to calculate elapsed time since we started trying formatting disks.
	// All times are rounded to avoid showing milli, micro and nano seconds
	formatStartTime := time.Now().Round(time.Second)
	getElapsedTime := func() string {
		return time.Now().Round(time.Second).Sub(formatStartTime).String()
	}

	var (
		tries   int
		verbose bool
	)

	// Initialize all storage disks

      // SequentialExecutor by the time the barrier is satisfied
      barrier.await(1, SECONDS);
      executor.execute(barrierTask);
      // timeout means the second task wasn't even tried
      barrier.await(1, SECONDS);
    } finally {
      service.shutdown();
    }
  }

  public void testRejectedExecutionThrownWithMultipleCalls() throws Exception {

		memCache:          "Cache memory on the node",
		memAvailable:      "Available memory on the node",
		readsPerSec:       "Reads per second on a drive",
		writesPerSec:      "Writes per second on a drive",
		readsKBPerSec:     "Kilobytes read per second on a drive",
		writesKBPerSec:    "Kilobytes written per second on a drive",
		readsAwait:        "Average time for read requests to be served on a drive",

   * is complete. It does so by using daemon threads and adding a shutdown hook to wait for their
   * completion.
   *
   * <p>This method waits 120 seconds before continuing with JVM termination, even if the executor
   * has not finished its work.
   *
   * <p>This is mainly for fixed thread pools. See {@link Executors#newFixedThreadPool(int)}.
   *

	biggerBufMax = maxBufferSize

	// If there is a queue, merge up to this many messages.
	maxMergeMessages = 50

	// clientPingInterval will ping the remote handler every 15 seconds.
	// Clients disconnect when we exceed 2 intervals.
	clientPingInterval = 15 * time.Second

	// Deadline for single (non-streaming) requests to complete.
	// Used if no deadline is provided on context.
	defaultSingleRequestTimeout = time.Minute
)