@Override
    public void transferToGroup(String group, IoBuffer head, IoBuffer tail, FileChannel channel, long position,
            long size) throws NotifyRemotingException {
        this.remotingClient.transferToGroup(group, head, tail, channel, position, size);
    }
Whether to enable loopback connection for metaq client, default is false.
metamorphosis-client/src/main/java/com/taobao/metamorphosis/client/RemotingClientWrapper.java