public void printTimeStamp() {
		System.out.println(localName + " time stamp: " + clockService.getTimeStamp());
		Iterator<Entry<String, VectorClock>> iter = clockServiceGroups.entrySet().iterator();
		while (iter.hasNext()) {
			Entry<String, VectorClock> entry = iter.next();
			System.out.println("\t" + entry.getKey() + ": " + entry.getValue());
		}
	}