milvus/internal/querynode/flow_graph_msg_stream_input_nodes.go

// Copyright (C) 2019-2020 Zilliz. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License
// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
// or implied. See the License for the specific language governing permissions and limitations under the License.

package querynode

import (
	"context"

	"github.com/milvus-io/milvus/internal/util/flowgraph"
)

func (dsService *dataSyncService) newDmInputNode(ctx context.Context) *flowgraph.InputNode {
	// query node doesn't need to consume any topic
	insertStream, _ := dsService.msFactory.NewTtMsgStream(ctx)
	dsService.dmStream = insertStream

	maxQueueLength := Params.FlowGraphMaxQueueLength
	maxParallelism := Params.FlowGraphMaxParallelism

	node := flowgraph.NewInputNode(&insertStream, "dmInputNode", maxQueueLength, maxParallelism)
	return node
}