gRPC 0 OK vs 2 UNKNOWN
Both gRPC 0 (OK) and 2 (UNKNOWN) belong to the gRPC Status Codes category. 0 indicates that the operation completed successfully. Not an error; returned on success. Meanwhile, 2 means that an unknown error occurred. This may be returned when a server raises an exception that doesn't map to any known gRPC status code.
الوصف
The operation completed successfully. Not an error; returned on success.
متى تراه
The RPC completed without any issues. This is the expected response for every successful gRPC call.
كيفية الإصلاح
No fix needed — this indicates everything worked correctly.
الوصف
An unknown error occurred. This may be returned when a server raises an exception that doesn't map to any known gRPC status code.
متى تراه
The server threw an unhandled exception or returned an error that gRPC couldn't classify into a more specific status code.
كيفية الإصلاح
Check the server logs for the underlying exception. Wrap server-side errors with explicit gRPC status codes instead of letting them bubble up as UNKNOWN.
الفروق الرئيسية
gRPC 0: The operation completed successfully. Not an error; returned on success.
gRPC 2: An unknown error occurred. This may be returned when a server raises an exception that doesn't map to any known gRPC status code.
You encounter 0 when the RPC completed without any issues. This is the expected response for every successful gRPC call.
You encounter 2 when the server threw an unhandled exception or returned an error that gRPC couldn't classify into a more specific status code.
متى تستخدم أيًا منهما
For 0 (OK): No fix needed — this indicates everything worked correctly. For 2 (UNKNOWN): Check the server logs for the underlying exception. Wrap server-side errors with explicit gRPC status codes instead of letting them bubble up as UNKNOWN.