serviceName is blank引发频繁UNHEALTHY #868
Description
What version of nacos-sdk-go are you using?
nacos-sdk-go v2.3.1
What version of nacos-sever are you using?
2.4.3
What version of Go are you using (go version)?
go version go1.19.13 linux/amd64
What operating system (Linux, Windows, …) and version?
Linux
What did you do?
If possible, provide a recipe for reproducing the error.
err := namingClient.Subscribe(vo.SubscribeParam{
ServiceName: "", // ServiceName 传空
GroupName: "group-a", // default value is DEFAULT_GROUP
Clusters: []string{"cluster-a"}, // default value is DEFAULT
SubscribeCallback: func (services []model.Instance, err error) {
log.Printf("\n\n callback return services:%s \n\n", utils.ToJsonString(services))
},
})
当ServiceName为空时，会导致整个client变为UNHEALTHY，导致其他Service订阅出错，并且会频繁触发reconnect
2026-01-07T11:13:14.641+0800 DEBUG rpc/grpc_connection.go:69 1767755487446_10.69.27.241_36012 grpc request nacos server success, request=metadata:<type:"SubscribeServiceRequest" clientIp:"10.69.27.241" headers:<key:"app" value:"" > > body:<value:"{\"requestId\":\"\",\"namespace\":\"public\",\"serviceName\":\"\",\"groupName\":\"fat\",\"module\":\"naming\",\"subscribe\":true,\"clusters\":\"fat\"}" > , response={"resultCode":500,"errorCode":500,"message":"Param 'serviceName' is illegal, serviceName is blank","success":false}
2026-01-07T11:13:14.642+0800 ERROR rpc/rpc_client.go:650 Send request fail, request=SubscribeServiceRequest, body={"requestId":"","namespace":"public","serviceName":"","groupName":"fat","module":"naming","subscribe":true,"clusters":"fat"}, retryTimes=1, error=Param 'serviceName' is illegal, serviceName is blank
github.com/nacos-group/nacos-sdk-go/v2/common/remote/rpc.(*RpcClient).Request
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/common/remote/rpc/rpc_client.go:624
github.com/nacos-group/nacos-sdk-go/v2/clients/naming_client/naming_grpc.(*NamingGrpcProxy).requestToServer
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/clients/naming_client/naming_grpc/naming_grpc_proxy.go:88
github.com/nacos-group/nacos-sdk-go/v2/clients/naming_client/naming_grpc.(*NamingGrpcProxy).Subscribe
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/clients/naming_client/naming_grpc/naming_grpc_proxy.go:183
github.com/nacos-group/nacos-sdk-go/v2/clients/naming_client/naming_grpc.(*ConnectionEventListener).redoSubscribe
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/clients/naming_client/naming_grpc/connection_event_listener.go:68
github.com/nacos-group/nacos-sdk-go/v2/clients/naming_client/naming_grpc.(*ConnectionEventListener).OnConnected
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/clients/naming_client/naming_grpc/connection_event_listener.go:47
github.com/nacos-group/nacos-sdk-go/v2/common/remote/rpc.(*RpcClient).notifyConnectionEvent
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/common/remote/rpc/rpc_client.go:498
github.com/nacos-group/nacos-sdk-go/v2/common/remote/rpc.(*RpcClient).Start.func1
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/common/remote/rpc/rpc_client.go:280
runtime.goexit
/root/.g/go/src/runtime/asm_amd64.s:1594
2026-01-07T11:13:14.743+0800 DEBUG rpc/grpc_connection.go:69 1767755487446_10.69.27.241_36012 grpc request nacos server success, request=metadata:<type:"SubscribeServiceRequest" clientIp:"10.69.27.241" headers:<key:"app" value:"" > > body:<value:"{\"requestId\":\"\",\"namespace\":\"public\",\"serviceName\":\"\",\"groupName\":\"fat\",\"module\":\"naming\",\"subscribe\":true,\"clusters\":\"fat\"}" > , response={"resultCode":500,"errorCode":500,"message":"Param 'serviceName' is illegal, serviceName is blank","success":false}
2026-01-07T11:13:14.744+0800 ERROR rpc/rpc_client.go:650 Send request fail, request=SubscribeServiceRequest, body={"requestId":"","namespace":"public","serviceName":"","groupName":"fat","module":"naming","subscribe":true,"clusters":"fat"}, retryTimes=2, error=Param 'serviceName' is illegal, serviceName is blank
github.com/nacos-group/nacos-sdk-go/v2/common/remote/rpc.(*RpcClient).Request
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/common/remote/rpc/rpc_client.go:624
github.com/nacos-group/nacos-sdk-go/v2/clients/naming_client/naming_grpc.(*NamingGrpcProxy).requestToServer
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/clients/naming_client/naming_grpc/naming_grpc_proxy.go:88
github.com/nacos-group/nacos-sdk-go/v2/clients/naming_client/naming_grpc.(*NamingGrpcProxy).Subscribe
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/clients/naming_client/naming_grpc/naming_grpc_proxy.go:183
github.com/nacos-group/nacos-sdk-go/v2/clients/naming_client/naming_grpc.(*ConnectionEventListener).redoSubscribe
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/clients/naming_client/naming_grpc/connection_event_listener.go:68
github.com/nacos-group/nacos-sdk-go/v2/clients/naming_client/naming_grpc.(*ConnectionEventListener).OnConnected
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/clients/naming_client/naming_grpc/connection_event_listener.go:47
github.com/nacos-group/nacos-sdk-go/v2/common/remote/rpc.(*RpcClient).notifyConnectionEvent
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/common/remote/rpc/rpc_client.go:498
github.com/nacos-group/nacos-sdk-go/v2/common/remote/rpc.(*RpcClient).Start.func1
/root/go/pkg/mod/github.com/nacos-group/nacos-sdk-go/v2@v2.3.1/common/remote/rpc/rpc_client.go:280
runtime.goexit
/root/.g/go/src/runtime/asm_amd64.s:1594
2026-01-07T11:13:14.844+0800 WARN rpc/rpc_client.go:639 Request retry exhausted, status changed: RUNNING -> UNHEALTHY, request=SubscribeServiceRequest, connectionId=1767755487446_10.69.27.241_36012
What did you expect to see?
如果是客户端参数错误，应该Subscribe就报错， 或者定时重试。不应该影响到client的状态
What did you see instead?
当ServiceName为空时，会导致整个client变为UNHEALTHY，导致其他Service订阅出错，并且会频繁触发reconnect