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.
Описание
The operation completed successfully. Not an error; returned on success.
Когда вы это видите
The RPC completed without any issues. This is the expected response for every successful gRPC call.
Как исправить
No fix needed — this indicates everything worked correctly.
Описание
An unknown error occurred. This may be returned when a server raises an exception that doesn't map to any known gRPC status code.
Когда вы это видите
The server threw an unhandled exception or returned an error that gRPC couldn't classify into a more specific status code.
Как исправить
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.
Ключевые различия
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.
Когда что использовать
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.