private void removeSlave(String ip, int port) {
		for (int i = 0; i < slaveList.size(); i++) {
			SlaveWorker w = slaveList.get(i);
			if (w.ip.equals(ip) && w.port == port) {
				slaveList.remove(w);
				System.out.print("Slave " + w.ip + ":" + w.port
						+ " disconnected\n>> ");
			}
		}
	}