RocketMQ无法连接服务器broker

Question

com.alibaba.rocketmq.client.exception.MQClientException: Send [1] times, still failed, cost [3047]ms, Topic: TopicTest1, BrokersSent: [WIN-496E3GENHS1, null, null]

See https://github.com/alibaba/RocketMQ/issues/50 for further details.
    at com.alibaba.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendDefaultImpl(DefaultMQProducerImpl.java:578)
    at com.alibaba.rocketmq.client.impl.producer.DefaultMQProducerImpl.send(DefaultMQProducerImpl.java:1031)
    at com.alibaba.rocketmq.client.impl.producer.DefaultMQProducerImpl.send(DefaultMQProducerImpl.java:1025)
    at com.alibaba.rocketmq.client.producer.DefaultMQProducer.send(DefaultMQProducer.java:95)
    at com.test.mq.Producer.main(Producer.java:43)
Caused by: com.alibaba.rocketmq.remoting.exception.RemotingConnectException: connect to <169.254.95.120:10911> failed
    at com.alibaba.rocketmq.remoting.netty.NettyRemotingClient.invokeSync(NettyRemotingClient.java:641)
    at com.alibaba.rocketmq.client.impl.MQClientAPIImpl.sendMessageSync(MQClientAPIImpl.java:306)
    at com.alibaba.rocketmq.client.impl.MQClientAPIImpl.sendMessage(MQClientAPIImpl.java:289)
    at com.alibaba.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendKernelImpl(DefaultMQProducerImpl.java:679)
    at com.alibaba.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendDefaultImpl(DefaultMQProducerImpl.java:500)
    ... 4 more

Answer 1

原因已经找到: 主要是服务器上有多个网卡。把不需要的网卡全部禁用就可以，只留下有效的网卡。这样代理服务不会生成“奇怪的”代理地址。

另外，服务器上相关的端口也要开放，否则也会导致连接不通。

以上两条，希望给新人们一点点帮助吧！

Answer 2

See https://github.com/alibaba/RocketMQ/issues/50 for further details.