syncDaemon.shutDown();
	public synchronized void shutdown() {		while (pool.size() < brokers)			try {				this.wait();			} catch (InterruptedException e) {			}		LOG.debug("calling shutdown ...");		for (Iterator i = active.iterator(); i.hasNext();)			 ((DBBroker) i.next()).shutdown();		LOG.debug("shutdown!");		conf = null;	}