mirror of https://github.com/milvus-io/milvus.git
55 lines
2.4 KiB
Go
55 lines
2.4 KiB
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 datanode
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/milvus-io/milvus/internal/log"
|
|
"github.com/milvus-io/milvus/internal/proto/internalpb"
|
|
"github.com/milvus-io/milvus/internal/rootcoord"
|
|
"github.com/milvus-io/milvus/internal/util/flowgraph"
|
|
"go.uber.org/zap"
|
|
)
|
|
|
|
// DmInputNode receives messages from message streams, packs messages between two timeticks, and passes all
|
|
// messages between two timeticks to the following flowgraph node. In DataNode, the following flow graph node is
|
|
// flowgraph ddNode.
|
|
func newDmInputNode(ctx context.Context, seekPos *internalpb.MsgPosition, dmNodeConfig *nodeConfig) (*flowgraph.InputNode, error) {
|
|
// subName should be unique, since pchannelName is shared among several collections
|
|
// consumeSubName := Params.MsgChannelSubName + "-" + strconv.FormatInt(collID, 10)
|
|
consumeSubName := fmt.Sprintf("%s-%d", Params.MsgChannelSubName, dmNodeConfig.collectionID)
|
|
insertStream, err := dmNodeConfig.msFactory.NewTtMsgStream(ctx)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// MsgStream needs a physical channel name, but the channel name in seek position from DataCoord
|
|
// is virtual channel name, so we need to convert vchannel name into pchannel neme here.
|
|
pchannelName := rootcoord.ToPhysicalChannel(dmNodeConfig.vChannelName)
|
|
insertStream.AsConsumer([]string{pchannelName}, consumeSubName)
|
|
log.Debug("datanode AsConsumer", zap.String("physical channel", pchannelName), zap.String("subName", consumeSubName))
|
|
|
|
if seekPos != nil {
|
|
seekPos.ChannelName = pchannelName
|
|
log.Debug("datanode Seek", zap.String("channelName", seekPos.GetChannelName()))
|
|
err = insertStream.Seek([]*internalpb.MsgPosition{seekPos})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
node := flowgraph.NewInputNode(insertStream, "dmInputNode", dmNodeConfig.maxQueueLength, dmNodeConfig.maxParallelism)
|
|
return node, nil
|
|
}
|