How to use

addNodeUpdateDuration

method

in

org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSOpDurations

@Override
protected void nodeUpdate(RMNode nm) {
 writeLock.lock();
 try {
  long start = getClock().getTime();
  super.nodeUpdate(nm);
  FSSchedulerNode fsNode = getFSSchedulerNode(nm.getNodeID());
  attemptScheduling(fsNode);
  long duration = getClock().getTime() - start;
  fsOpDurations.addNodeUpdateDuration(duration);
 } finally {
  writeLock.unlock();
 }
}

fsOpDurations.addNodeUpdateDuration(duration);

fsOpDurations.addNodeUpdateDuration(duration);