def create_data_channel(self, remote_grpc_port): url = remote_grpc_port.api_service_descriptor.url if url not in self._data_channel_cache: logging.info('Creating channel for %s', url) grpc_channel = grpc.insecure_channel(url) self._data_channel_cache[url] = GrpcClientDataChannel( beam_fn_api_pb2.BeamFnDataStub(grpc_channel)) return self._data_channel_cache[url]
def create_data_channel(self, function_spec): remote_grpc_port = beam_fn_api_pb2.RemoteGrpcPort() function_spec.data.Unpack(remote_grpc_port) url = remote_grpc_port.api_service_descriptor.url if url not in self._data_channel_cache: logging.info('Creating channel for %s', url) grpc_channel = grpc.insecure_channel(url) self._data_channel_cache[url] = GrpcClientDataChannel( beam_fn_api_pb2.BeamFnDataStub(grpc_channel)) return self._data_channel_cache[url]
def create_data_channel(self, remote_grpc_port): url = remote_grpc_port.api_service_descriptor.url if url not in self._data_channel_cache: logging.info('Creating channel for %s', url) grpc_channel = grpc.insecure_channel( url, # Options to have no limits (-1) on the size of the messages # received or sent over the data plane. The actual buffer size is # controlled in a layer above. options=[("grpc.max_receive_message_length", -1), ("grpc.max_send_message_length", -1)]) self._data_channel_cache[url] = GrpcClientDataChannel( beam_fn_api_pb2.BeamFnDataStub(grpc_channel)) return self._data_channel_cache[url]
def test_grpc_data_channel(self): data_channel_service = data_plane.GrpcServerDataChannel() server = grpc.server(futures.ThreadPoolExecutor(max_workers=2)) beam_fn_api_pb2.add_BeamFnDataServicer_to_server( data_channel_service, server) test_port = server.add_insecure_port('[::]:0') server.start() data_channel_stub = beam_fn_api_pb2.BeamFnDataStub( grpc.insecure_channel('localhost:%s' % test_port)) data_channel_client = data_plane.GrpcClientDataChannel( data_channel_stub) try: self._data_channel_test(data_channel_service, data_channel_client) finally: data_channel_client.close() data_channel_service.close() data_channel_client.wait() data_channel_service.wait()