RocketMQ一直打印RocketmqRemoting closeChannel: close the connection to remote address[] result: true

交代一下背景：

RocketMQ服务端搭建在ECS上面（问题就出在这里）

SpringBoot应用根据官网Demo（参考：https://github.com/apache/rocketmq-spring/tree/master/rocketmq-spring-boot-samples）构建

项目启动的时候就开始打印远程地址为空，发送消息失败并且也打印远程地址为空：

RocketmqRemoting: closeChannel: close the connection to remote address[] result: true

remote address是空的，开始以为是项目的rocketmq.name-server配置有问题，通过获取RocketMQTemplate的namesrvAddr发现没问题，代码如下

rocketMQTemplate.getProducer().getNamesrvAddr()

再看一下SendCallback的Throwable，错误信息如下：

org.apache.rocketmq.client.exception.MQClientException: Send [1] times, still failed, cost [5325]ms, Topic: ADDRESS_PART_TOPIC, BrokersSent: [broker-a]
See http://rocketmq.apache.org/docs/faq/ for further details.
    at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendDefaultImpl(DefaultMQProducerImpl.java:638)
    at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.access$300(DefaultMQProducerImpl.java:90)
    at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl$3.run(DefaultMQProducerImpl.java:491)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
    at java.util.concurrent.FutureTask.run(FutureTask.java)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to <192.168.0.4:10911> failed
    at org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeAsync(NettyRemotingClient.java:537)
    at org.apache.rocketmq.client.impl.MQClientAPIImpl.sendMessageAsync(MQClientAPIImpl.java:484)
    at org.apache.rocketmq.client.impl.MQClientAPIImpl.sendMessage(MQClientAPIImpl.java:441)
    at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendKernelImpl(DefaultMQProducerImpl.java:811)
    at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendDefaultImpl(DefaultMQProducerImpl.java:557)
    ... 8 more

看到192.168.0.4:10911这个地址就知道问题是出在RocketMQ的Broker服务，192.168.0.4是ECS内网IP地址

这里再看一下Broker启动信息：

The broker[broker-a, 192.168.0.4:10911] boot success. serializeType=JSON and name server is X.X.X.X:9876

确定问题是brokerIP是服务器的内网IP导致producer无法与之建立连接导致

解决方法：

//查看broker配置
sh ./bin/mqbroker -m

在conf/broker.conf配置文件中增加

brokerIP1=X.X.X.X（公网IP）

再次启动broker服务

nohup sh bin/mqbroker -n 111.231.XX.XX:9876 -c conf/broker.conf autoCreateTopicEnable=true &

启动结果：

The broker[broker-a, X.X.X.X:10911] boot success. serializeType=JSON and name server is 106.12.x.x:9876

重启本地项目，测试producer发送消息成功