public void notify(int ack, String fileName) {
		switch (ack) {
		case Global.READACK:
			masterLogger.logMessage("===> done reading " + fileName);
			break;
		case Global.WRITEACK:
			masterLogger.logMessage("===> done writing " + fileName
					+ "in primary replica");
			break;
		case Global.BROADCASTSTARTACK:
			masterLogger.logMessage("===> Start flushing " + fileName
					+ " to all replicas");
			break;
		case Global.BROADCASTENDACK:
			masterLogger.logMessage("===> done flushing " + fileName
					+ " to all replicas");
			break;
		default:
			masterLogger.logMessage("===> Aport ");
			break;
		}
	}