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63 lines
2.8 KiB
Go
63 lines
2.8 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package datanode
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import (
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"context"
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"fmt"
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"time"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/proto/internalpb"
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"github.com/milvus-io/milvus/internal/rootcoord"
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"github.com/milvus-io/milvus/internal/util/flowgraph"
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"go.uber.org/zap"
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)
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// DmInputNode receives messages from message streams, packs messages between two timeticks, and passes all
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// messages between two timeticks to the following flowgraph node. In DataNode, the following flow graph node is
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// flowgraph ddNode.
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func newDmInputNode(ctx context.Context, seekPos *internalpb.MsgPosition, dmNodeConfig *nodeConfig) (*flowgraph.InputNode, error) {
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// subName should be unique, since pchannelName is shared among several collections
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// consumeSubName := Params.MsgChannelSubName + "-" + strconv.FormatInt(collID, 10)
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consumeSubName := fmt.Sprintf("%s-%d", Params.MsgChannelSubName, dmNodeConfig.collectionID)
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insertStream, err := dmNodeConfig.msFactory.NewTtMsgStream(ctx)
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if err != nil {
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return nil, err
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}
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// MsgStream needs a physical channel name, but the channel name in seek position from DataCoord
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// is virtual channel name, so we need to convert vchannel name into pchannel neme here.
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pchannelName := rootcoord.ToPhysicalChannel(dmNodeConfig.vChannelName)
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insertStream.AsConsumer([]string{pchannelName}, consumeSubName)
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log.Debug("datanode AsConsumer", zap.String("physical channel", pchannelName), zap.String("subName", consumeSubName))
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if seekPos != nil {
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seekPos.ChannelName = pchannelName
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start := time.Now()
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log.Debug("datanode begin to seek", zap.String("Channel Name", seekPos.GetChannelName()))
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err = insertStream.Seek([]*internalpb.MsgPosition{seekPos})
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if err != nil {
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return nil, err
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}
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log.Debug("datanode Seek successfully", zap.String("Channel Name", seekPos.GetChannelName()), zap.Duration("elapse", time.Since(start)))
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}
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node := flowgraph.NewInputNode(insertStream, "dmInputNode", dmNodeConfig.maxQueueLength, dmNodeConfig.maxParallelism)
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return node, nil
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}
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