tigerleeli opened a new issue #2712: spring-cloud-alibaba feign里面使用，这个是什么原因？是什么地方没有配置对吗 URL: https://github.com/apache/skywalking/issues/2712 DEBUG 2019-05-19 15:27:33:063 SkywalkingAgent-4-ServiceAndEndpointRegisterClient-0 ServiceAndEndpointRegisterClient : ServiceAndEndpointRegisterClient running, status:CONNECTED. ERROR 2019-05-19 15:27:33:082 SkywalkingAgent-4-ServiceAndEndpointRegisterClient-0 ServiceAndEndpointRegisterClient : ServiceAndEndpointRegisterClient execute fail. org.apache.skywalking.apm.dependencies.io.grpc.StatusRuntimeException: UNKNOWN at org.apache.skywalking.apm.dependencies.io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:222) at org.apache.skywalking.apm.dependencies.io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:203) at org.apache.skywalking.apm.dependencies.io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:132) at org.apache.skywalking.apm.network.register.v2.RegisterGrpc$RegisterBlockingStub.doServiceRegister(RegisterGrpc.java:386) at org.apache.skywalking.apm.agent.core.remote.ServiceAndEndpointRegisterClient.run(ServiceAndEndpointRegisterClient.java:115) at org.apache.skywalking.apm.util.RunnableWithExceptionProtection.run(RunnableWithExceptionProtection.java:36) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) 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) 
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