gRPC 2 UNKNOWN vs 7 PERMISSION_DENIED
Both gRPC 2 (UNKNOWN) and 7 (PERMISSION_DENIED) 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, 7 means that the caller does not have permission to execute the specified operation. This is not for unauthenticated callers — use UNAUTHENTICATED instead.
Mô tả
An unknown error occurred. This may be returned when a server raises an exception that doesn't map to any known gRPC status code.
Khi bạn thấy mã này
The server threw an unhandled exception or returned an error that gRPC couldn't classify into a more specific status code.
Cách khắc phục
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.
Mô tả
The caller does not have permission to execute the specified operation. This is not for unauthenticated callers — use UNAUTHENTICATED instead.
Khi bạn thấy mã này
The authenticated user lacks the required role, scope, or policy to perform this action. Different from UNAUTHENTICATED (code 16), which means no credentials at all.
Cách khắc phục
Verify the caller has the correct IAM role, API scope, or access policy. Check RBAC configuration on the server side.
Sự khác biệt chính
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 7: The caller does not have permission to execute the specified operation. This is not for unauthenticated callers — use UNAUTHENTICATED instead.
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 7 when the authenticated user lacks the required role, scope, or policy to perform this action. Different from UNAUTHENTICATED (code 16), which means no credentials at all.
Khi nào dùng cái nào
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 7 (PERMISSION_DENIED): Verify the caller has the correct IAM role, API scope, or access policy. Check RBAC configuration on the server side.