go type_error ai_generated true

rpc错误:代码=未实现 描述=方法 /helloworld.Greeter/SayHello 未实现

rpc error: code = Unimplemented desc = method /helloworld.Greeter/SayHello not implemented

ID: go/grpc-unimplemented-method-not-found

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80%修复率
88%置信度
0证据数
2024-02-20首次发现

版本兼容性

版本状态引入弃用备注
1.0 active
1.1 active

根因分析

服务器没有为请求的RPC方法注册处理程序,通常是由于protobuf定义与服务器实现不匹配。

English

The server does not have a handler registered for the requested RPC method, often due to a mismatch between protobuf definitions and server implementation.

generic

解决方案

  1. 95% 成功率 Ensure the server registers the exact method from the protobuf service definition.
    type server struct {
        pb.UnimplementedGreeterServer
    }
    func (s *server) SayHello(ctx context.Context, req *pb.HelloRequest) (*pb.HelloReply, error) {
        return &pb.HelloReply{Message: "Hello " + req.Name}, nil
    }
    // Then register: pb.RegisterGreeterServer(grpcServer, &server{})
  2. 90% 成功率 Regenerate protobuf code and rebuild both client and server.
    protoc --go_out=. --go-grpc_out=. helloworld.proto
    go build ./...

无效尝试

常见但无效的做法:

  1. Restart the server without updating the protobuf definition. 100% 失败

    The server code is missing the method implementation; restarting does not add it.

  2. Call a different method with similar name hoping it works. 95% 失败

    The client is designed to call a specific method; using another may cause data inconsistency.