@Override
                public void operationComplete(ChannelFuture f) throws Exception {
                    if (!f.isSuccess()) {
                        LOGGER.error("Invoke send failed. The address is {}",
                            RemotingUtil.parseRemoteAddress(conn.getChannel()), f.cause());
                    }
                }
Oneway invocation.

@param conn
@param request
@throws InterruptedException
src/main/java/com/alipay/remoting/BaseRemoting.java