thousmile opened a new issue, #9955:
URL: https://github.com/apache/dubbo/issues/9955

   2022-04-22 14:57:16.757 ERROR 7152 --- [      main] 
.r.c.e.l.ServiceInstancesChangedListener :  [DUBBO] Failed to load service 
metadata, meta type is local, dubbo version: 3.0.5, current host: 192.168.0.144
   
   org.apache.dubbo.rpc.RpcException: Fail to create remoting client for 
service(dubbo://192.168.0.144:16610/org.apache.dubbo.metadata.MetadataService?codec=dubbo&connections=1&dubbo=2.0.2&group=oauth2-server&heartbeat=60000&port=16610&protocol=dubbo&release=3.0.7&side=provider&timeout=5000&version=1.0.0):
 client(url: 
dubbo://192.168.0.144:16610/org.apache.dubbo.metadata.MetadataService?codec=dubbo&connections=1&dubbo=2.0.2&group=oauth2-server&heartbeat=60000&port=16610&protocol=dubbo&release=3.0.7&side=provider&timeout=5000&version=1.0.0)
 failed to connect to server /192.168.0.144:16610, error message is:Connection 
refused: no further information: /192.168.0.144:16610
        at 
org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.initClient(DubboProtocol.java:650)
        at 
org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.getClients(DubboProtocol.java:462)
        at 
org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.protocolBindingRefer(DubboProtocol.java:430)
        at 
org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.refer(DubboProtocol.java:421)
        at 
org.apache.dubbo.qos.protocol.QosProtocolWrapper.refer(QosProtocolWrapper.java:85)
        at 
org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.refer(ProtocolListenerWrapper.java:77)
        at 
org.apache.dubbo.rpc.cluster.filter.ProtocolFilterWrapper.refer(ProtocolFilterWrapper.java:74)
        at 
org.apache.dubbo.rpc.protocol.ProtocolSerializationWrapper.refer(ProtocolSerializationWrapper.java:52)
        at org.apache.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java)
   
   
   Same code, no problem in dubbo 3.0.4!
   
   Although the error is reported, it is strange that it can work normally
   
   


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