RocketMQ FAQ

RocketMQ FAQ

API 问题

connect to <172.17.0.1:10909> failed

启动后,Producer 客户端连接 RocketMQ 时报错:

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org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to <172.17.0.1:10909> failed
at org.apache.rocketmq.remoting.netty.NettyRemotingClient.invokeSync(NettyRemotingClient.java:357)
at org.apache.rocketmq.client.impl.MQClientAPIImpl.sendMessageSync(MQClientAPIImpl.java:343)
at org.apache.rocketmq.client.impl.MQClientAPIImpl.sendMessage(MQClientAPIImpl.java:327)
at org.apache.rocketmq.client.impl.MQClientAPIImpl.sendMessage(MQClientAPIImpl.java:290)
at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendKernelImpl(DefaultMQProducerImpl.java:688)
at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendSelectImpl(DefaultMQProducerImpl.java:901)
at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.send(DefaultMQProducerImpl.java:878)
at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.send(DefaultMQProducerImpl.java:873)
at org.apache.rocketmq.client.producer.DefaultMQProducer.send(DefaultMQProducer.java:369)
at com.emrubik.uc.mdm.sync.utils.MdmInit.sendMessage(MdmInit.java:62)
at com.emrubik.uc.mdm.sync.utils.MdmInit.main(MdmInit.java:2149)

原因:RocketMQ 部署在虚拟机上,内网 ip 为 10.10.30.63,该虚拟机一个 docker0 网卡,ip 为 172.17.0.1。RocketMQ broker 启动时默认使用了 docker0 网卡,Producer 客户端无法连接 172.17.0.1,造成以上问题。

解决方案

(1)干掉 docker0 网卡或修改网卡名称

(2)停掉 broker,修改 broker 配置文件,重启 broker。

修改 conf/broker.conf,增加两行来指定启动 broker 的 IP:

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namesrvAddr = 10.10.30.63:9876
brokerIP1 = 10.10.30.63

启动时需要指定配置文件

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nohup sh bin/mqbroker -n localhost:9876 -c conf/broker.conf &