public String handleGetBySlave(KVMessage msg , TPCSlaveInfo slave) {
    	String value = null;
    	Socket sock = null;
    	KVMessage resp = null;
    	
    	try {
    		sock = slave.connectHost(TIMEOUT);
    		msg.sendMessage(sock);
    		resp = new KVMessage(sock);
    		
    		if (resp.getMsgType().equals(KVConstants.RESP) && resp.getValue() != null &&
    			resp.getValue().length() > 0)
    			value = resp.getValue();
    	}
    	catch (Exception ex) {    		
    	}
    	finally {
    		if (sock != null) {
    			slave.closeHost(sock);
    		}
    	}
    	return value;
    }