warriorSL2016 commented on issue #947: fix: 运行demo的时候，连接无线网，默认会获取IPv6 地址，导致报错 URL: https://github.com/apache/incubator-dubbo/pull/947#issuecomment-382391000 我也遇到这个恶心的问题了, 使用 <dubbo:registry address="multicast://224.5.6.7:1234"/>, 运行官网实例的dubbo-demo项目, 并且还是使用提示的使用debug,或者配置-Djava.net.preferIPv4Stack=true, 防止使用ipv6, 服务方能正常启动, 但是消费方根本就找不到服务, 请给出解释, 浪费了很长时间....错误栈如下: com.alibaba.dubbo.rpc.RpcException: Failed to invoke the method sayHello in the service com.alibaba.dubbo.demo.DemoService. No provider available for the service com.alibaba.dubbo.demo.DemoService from registry 224.5.6.7:1234 on the consumer 192.168.2.110 using the dubbo version 2.0.0. Please check if the providers have been started and registered. at com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker.checkInvokers(AbstractClusterInvoker.java:252) at com.alibaba.dubbo.rpc.cluster.support.FailoverClusterInvoker.doInvoke(FailoverClusterInvoker.java:55) at com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker.invoke(AbstractClusterInvoker.java:233) at com.alibaba.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker.invoke(MockClusterInvoker.java:70) at com.alibaba.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:51) at com.alibaba.dubbo.common.bytecode.proxy0.sayHello(proxy0.java) at com.alibaba.dubbo.demo.consumer.Consumer.main(Consumer.java:35)
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