Compute returns service errors with status code Unknown and the HTTP status code of "503 - Service Unavailable".
AFAICT, that is not how gRPC-based services are supposed to work (503 maps to Unavailable), but compute is not a gRPC-based service. It also seems obvious that 503 errors are always retryable, even if the service returned something ambiguous like "unknown".
Compute returns service errors with status code
Unknownand the HTTP status code of "503 - Service Unavailable".AFAICT, that is not how gRPC-based services are supposed to work (503 maps to Unavailable), but compute is not a gRPC-based service. It also seems obvious that 503 errors are always retryable, even if the service returned something ambiguous like "unknown".