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237 lines
7.6 KiB
Go
237 lines
7.6 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 querynode
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import (
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"context"
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"fmt"
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"time"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/metrics"
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"github.com/milvus-io/milvus/internal/mq/msgdispatcher"
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"github.com/milvus-io/milvus/internal/mq/msgstream"
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"github.com/milvus-io/milvus/internal/mq/msgstream/mqwrapper"
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"github.com/milvus-io/milvus/internal/util/flowgraph"
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"github.com/milvus-io/milvus/internal/util/paramtable"
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"github.com/milvus-io/milvus/internal/util/tsoutil"
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"github.com/milvus-io/milvus/internal/util/typeutil"
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)
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type (
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// baseNode is type flowgraph.BaseNode
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baseNode = flowgraph.BaseNode
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// node is type flowgraph.Node
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node = flowgraph.Node
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)
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// queryNodeFlowGraph is a TimeTickedFlowGraph in query node
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type queryNodeFlowGraph struct {
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collectionID UniqueID
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vchannel Channel
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flowGraph *flowgraph.TimeTickedFlowGraph
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tSafeReplica TSafeReplicaInterface
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consumerCnt int
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dispClient msgdispatcher.Client
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}
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// newQueryNodeFlowGraph returns a new queryNodeFlowGraph
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func newQueryNodeFlowGraph(ctx context.Context,
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collectionID UniqueID,
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metaReplica ReplicaInterface,
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tSafeReplica TSafeReplicaInterface,
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vchannel Channel,
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pos *msgstream.MsgPosition,
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dispClient msgdispatcher.Client) (*queryNodeFlowGraph, error) {
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q := &queryNodeFlowGraph{
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collectionID: collectionID,
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vchannel: vchannel,
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tSafeReplica: tSafeReplica,
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flowGraph: flowgraph.NewTimeTickedFlowGraph(ctx),
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dispClient: dispClient,
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}
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dmStreamNode, err := q.newDmInputNode(collectionID, vchannel, pos, metrics.InsertLabel)
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if err != nil {
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return nil, err
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}
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var filterDmNode node = newFilteredDmNode(metaReplica, collectionID, vchannel)
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var insertNode node = newInsertNode(metaReplica, collectionID, vchannel)
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var serviceTimeNode node = newServiceTimeNode(tSafeReplica, collectionID, vchannel)
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q.flowGraph.AddNode(dmStreamNode)
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q.flowGraph.AddNode(filterDmNode)
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q.flowGraph.AddNode(insertNode)
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q.flowGraph.AddNode(serviceTimeNode)
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// dmStreamNode
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err = q.flowGraph.SetEdges(dmStreamNode.Name(),
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[]string{filterDmNode.Name()},
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)
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if err != nil {
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return nil, fmt.Errorf("set edges failed in node: %s, err = %s", dmStreamNode.Name(), err.Error())
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}
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// filterDmNode
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err = q.flowGraph.SetEdges(filterDmNode.Name(),
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[]string{insertNode.Name()},
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)
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if err != nil {
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return nil, fmt.Errorf("set edges failed in node: %s, err = %s", filterDmNode.Name(), err.Error())
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}
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// insertNode
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err = q.flowGraph.SetEdges(insertNode.Name(),
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[]string{serviceTimeNode.Name()},
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)
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if err != nil {
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return nil, fmt.Errorf("set edges failed in node: %s, err = %s", insertNode.Name(), err.Error())
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}
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// serviceTimeNode
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err = q.flowGraph.SetEdges(serviceTimeNode.Name(),
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[]string{},
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)
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if err != nil {
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return nil, fmt.Errorf("set edges failed in node: %s, err = %s", serviceTimeNode.Name(), err.Error())
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}
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return q, nil
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}
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// newQueryNodeDeltaFlowGraph returns a new queryNodeFlowGraph
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func newQueryNodeDeltaFlowGraph(ctx context.Context,
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collectionID UniqueID,
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metaReplica ReplicaInterface,
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tSafeReplica TSafeReplicaInterface,
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vchannel Channel,
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dispClient msgdispatcher.Client) (*queryNodeFlowGraph, error) {
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q := &queryNodeFlowGraph{
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collectionID: collectionID,
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vchannel: vchannel,
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tSafeReplica: tSafeReplica,
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flowGraph: flowgraph.NewTimeTickedFlowGraph(ctx),
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dispClient: dispClient,
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}
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// use nil position, let deltaFlowGraph consume from latest.
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dmStreamNode, err := q.newDmInputNode(collectionID, vchannel, nil, metrics.DeleteLabel)
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if err != nil {
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return nil, err
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}
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var filterDeleteNode node = newFilteredDeleteNode(metaReplica, collectionID, vchannel)
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deleteNode, err := newDeleteNode(metaReplica, collectionID, vchannel)
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if err != nil {
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return nil, err
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}
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var serviceTimeNode node = newServiceTimeNode(tSafeReplica, collectionID, vchannel)
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q.flowGraph.AddNode(dmStreamNode)
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q.flowGraph.AddNode(filterDeleteNode)
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q.flowGraph.AddNode(deleteNode)
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q.flowGraph.AddNode(serviceTimeNode)
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// dmStreamNode
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err = q.flowGraph.SetEdges(dmStreamNode.Name(),
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[]string{filterDeleteNode.Name()},
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)
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if err != nil {
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return nil, fmt.Errorf("set edges failed in node: %s, err = %s", dmStreamNode.Name(), err.Error())
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}
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// filterDmNode
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err = q.flowGraph.SetEdges(filterDeleteNode.Name(),
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[]string{deleteNode.Name()},
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)
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if err != nil {
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return nil, fmt.Errorf("set edges failed in node: %s, err = %s", filterDeleteNode.Name(), err.Error())
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}
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// insertNode
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err = q.flowGraph.SetEdges(deleteNode.Name(),
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[]string{serviceTimeNode.Name()},
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)
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if err != nil {
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return nil, fmt.Errorf("set edges failed in node: %s, err = %s", deleteNode.Name(), err.Error())
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}
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// serviceTimeNode
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err = q.flowGraph.SetEdges(serviceTimeNode.Name(),
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[]string{},
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)
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if err != nil {
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return nil, fmt.Errorf("set edges failed in node: %s, err = %s", serviceTimeNode.Name(), err.Error())
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}
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return q, nil
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}
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// newDmInputNode returns a new inputNode
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func (q *queryNodeFlowGraph) newDmInputNode(collectionID UniqueID, vchannel Channel, pos *msgstream.MsgPosition, dataType string) (*flowgraph.InputNode, error) {
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log := log.With(zap.Int64("nodeID", paramtable.GetNodeID()),
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zap.Int64("collection ID", collectionID),
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zap.String("vchannel", vchannel))
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var err error
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var input <-chan *msgstream.MsgPack
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tsBegin := time.Now()
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if pos != nil && len(pos.MsgID) != 0 {
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input, err = q.dispClient.Register(vchannel, pos, mqwrapper.SubscriptionPositionUnknown)
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if err != nil {
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return nil, err
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}
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log.Info("QueryNode seek successfully when register to msgDispatcher",
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zap.ByteString("msgID", pos.GetMsgID()),
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zap.Time("tsTime", tsoutil.PhysicalTime(pos.GetTimestamp())),
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zap.Duration("tsLag", time.Since(tsoutil.PhysicalTime(pos.GetTimestamp()))),
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zap.Duration("timeTaken", time.Since(tsBegin)))
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} else {
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input, err = q.dispClient.Register(vchannel, nil, mqwrapper.SubscriptionPositionLatest)
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if err != nil {
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return nil, err
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}
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log.Info("QueryNode consume successfully when register to msgDispatcher",
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zap.Duration("timeTaken", time.Since(tsBegin)))
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}
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maxQueueLength := Params.QueryNodeCfg.FlowGraphMaxQueueLength.GetAsInt32()
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maxParallelism := Params.QueryNodeCfg.FlowGraphMaxParallelism.GetAsInt32()
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name := fmt.Sprintf("dmInputNode-query-%d-%s", collectionID, vchannel)
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node := flowgraph.NewInputNode(input, name, maxQueueLength, maxParallelism, typeutil.QueryNodeRole,
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paramtable.GetNodeID(), collectionID, dataType)
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return node, nil
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}
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// close would close queryNodeFlowGraph
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func (q *queryNodeFlowGraph) close() {
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q.dispClient.Deregister(q.vchannel)
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q.flowGraph.Close()
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if q.consumerCnt > 0 {
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metrics.QueryNodeNumConsumers.WithLabelValues(fmt.Sprint(paramtable.GetNodeID())).Sub(float64(q.consumerCnt))
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}
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log.Info("stop query node flow graph",
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zap.Int64("collectionID", q.collectionID),
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zap.String("vchannel", q.vchannel),
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)
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metrics.CleanupQueryNodeCollectionMetrics(paramtable.GetNodeID(), q.collectionID)
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}
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