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我有一个运行在 2 个不同服务器上的 grpc 客户端和服务器。使用此设置，当我运行客户端时，将出现以下错误。

Connect failed: {"created":"@1565697395.391945051","description":"Failed to connect to remote host: FD 
Shutdown","file":"src/core/lib/iomgr/lockfree_event.cc","file_line":194,"os_error":"Timeout occurred","referenced_errors":
[{"created":"@1565697395.391908468","description":"connect() timed out","file":"src/core/lib/iomgr/tcp_client_posix.cc","file_line":119}],"target_address":"ipv4:192.168.1.14:50051"}

如果客户端和服务器在同一台服务器上，它工作正常。

client code(python)
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channel = grpc.insecure_channel('192.168.1.14:50051')
stub = mmeGrpc_pb2_grpc.MmeGrpcCliStub(channel)

server code(cpp)(192.168.1.14)
----------------
  std::string server_address("0.0.0.0:50051");
  MmeGrpcCliServiceImpl service;

  ServerBuilder builder;

  builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());

  builder.RegisterService(&service);

  std::unique_ptr<Server> server(builder.BuildAndStart());

  server->Wait();
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