gRPC 2 UNKNOWN vs 16 UNAUTHENTICATED
Both gRPC 2 (UNKNOWN) and 16 (UNAUTHENTICATED) belong to the gRPC Status Codes category. 2 indicates 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. Meanwhile, 16 means that the request does not have valid authentication credentials for the operation.
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.
الوصف
The request does not have valid authentication credentials for the operation.
متى تراه
No credentials were provided, or the provided token/certificate is expired or invalid. Different from PERMISSION_DENIED (code 7), which means authenticated but not authorized.
كيفية الإصلاح
Provide valid authentication credentials (e.g., refresh the OAuth token, regenerate the API key, or renew the client certificate).
الفروق الرئيسية
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.
gRPC 16: The request does not have valid authentication credentials for the operation.
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.
You encounter 16 when no credentials were provided, or the provided token/certificate is expired or invalid. Different from PERMISSION_DENIED (code 7), which means authenticated but not authorized.
متى تستخدم أيًا منهما
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. For 16 (UNAUTHENTICATED): Provide valid authentication credentials (e.g., refresh the OAuth token, regenerate the API key, or renew the client certificate).