mirror of
https://gitee.com/milvus-io/milvus.git
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316 lines
10 KiB
Go
316 lines
10 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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"reflect"
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"sync/atomic"
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"github.com/golang/protobuf/proto"
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"go.opentelemetry.io/otel/trace"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
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"github.com/milvus-io/milvus-proto/go-api/v2/msgpb"
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"github.com/milvus-io/milvus/internal/proto/datapb"
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"github.com/milvus-io/milvus/internal/util/flowgraph"
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"github.com/milvus-io/milvus/pkg/log"
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"github.com/milvus-io/milvus/pkg/metrics"
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"github.com/milvus-io/milvus/pkg/mq/msgstream"
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"github.com/milvus-io/milvus/pkg/util/funcutil"
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"github.com/milvus-io/milvus/pkg/util/metricsinfo"
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"github.com/milvus-io/milvus/pkg/util/paramtable"
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)
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// make sure ddNode implements flowgraph.Node
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var _ flowgraph.Node = (*ddNode)(nil)
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// ddNode filters messages from message streams.
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//
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// ddNode recives all the messages from message stream dml channels, including insert messages,
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//
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// delete messages and ddl messages like CreateCollectionMsg and DropCollectionMsg.
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//
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// ddNode filters insert messages according to the `sealedSegment`.
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// ddNode will filter out the insert message for those who belong to `sealedSegment`
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//
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// When receiving a `DropCollection` message, ddNode will send a signal to DataNode `BackgroundGC`
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//
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// goroutinue, telling DataNode to release the resources of this particular flow graph.
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//
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// After the filtering process, ddNode passes all the valid insert messages and delete message
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//
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// to the following flow graph node, which in DataNode is `insertBufferNode`
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type ddNode struct {
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BaseNode
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ctx context.Context
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collectionID UniqueID
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vChannelName string
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dropMode atomic.Value
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compactionExecutor *compactionExecutor
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// for recovery
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growingSegInfo map[UniqueID]*datapb.SegmentInfo // segmentID
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sealedSegInfo map[UniqueID]*datapb.SegmentInfo // segmentID
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droppedSegmentIDs []int64
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}
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// Name returns node name, implementing flowgraph.Node
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func (ddn *ddNode) Name() string {
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return fmt.Sprintf("ddNode-%d-%s", ddn.collectionID, ddn.vChannelName)
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}
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func (ddn *ddNode) IsValidInMsg(in []Msg) bool {
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if !ddn.BaseNode.IsValidInMsg(in) {
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return false
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}
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_, ok := in[0].(*MsgStreamMsg)
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if !ok {
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log.Warn("type assertion failed for MsgStreamMsg", zap.String("name", reflect.TypeOf(in[0]).Name()))
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return false
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}
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return true
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}
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// Operate handles input messages, implementing flowgrpah.Node
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func (ddn *ddNode) Operate(in []Msg) []Msg {
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msMsg, ok := in[0].(*MsgStreamMsg)
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if !ok {
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log.Warn("type assertion failed for MsgStreamMsg", zap.String("name", reflect.TypeOf(in[0]).Name()))
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return []Msg{}
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}
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if msMsg.IsCloseMsg() {
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fgMsg := flowGraphMsg{
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BaseMsg: flowgraph.NewBaseMsg(true),
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insertMessages: make([]*msgstream.InsertMsg, 0),
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timeRange: TimeRange{
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timestampMin: msMsg.TimestampMin(),
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timestampMax: msMsg.TimestampMax(),
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},
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startPositions: msMsg.StartPositions(),
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endPositions: msMsg.EndPositions(),
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dropCollection: false,
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}
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log.Warn("MsgStream closed", zap.Any("ddNode node", ddn.Name()), zap.Int64("collection", ddn.collectionID), zap.String("channel", ddn.vChannelName))
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return []Msg{&fgMsg}
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}
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if load := ddn.dropMode.Load(); load != nil && load.(bool) {
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log.Info("ddNode in dropMode",
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zap.String("vChannelName", ddn.vChannelName),
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zap.Int64("collectionID", ddn.collectionID))
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return []Msg{}
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}
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var spans []trace.Span
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for _, msg := range msMsg.TsMessages() {
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ctx, sp := startTracer(msg, "DDNode-Operate")
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spans = append(spans, sp)
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msg.SetTraceCtx(ctx)
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}
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defer func() {
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for _, sp := range spans {
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sp.End()
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}
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}()
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fgMsg := flowGraphMsg{
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insertMessages: make([]*msgstream.InsertMsg, 0),
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timeRange: TimeRange{
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timestampMin: msMsg.TimestampMin(),
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timestampMax: msMsg.TimestampMax(),
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},
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startPositions: make([]*msgpb.MsgPosition, 0),
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endPositions: make([]*msgpb.MsgPosition, 0),
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dropCollection: false,
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}
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for _, msg := range msMsg.TsMessages() {
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switch msg.Type() {
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case commonpb.MsgType_DropCollection:
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if msg.(*msgstream.DropCollectionMsg).GetCollectionID() == ddn.collectionID {
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log.Info("Receiving DropCollection msg",
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zap.Int64("collectionID", ddn.collectionID),
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zap.String("vChannelName", ddn.vChannelName))
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ddn.dropMode.Store(true)
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log.Info("Stop compaction of vChannel", zap.String("vChannelName", ddn.vChannelName))
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ddn.compactionExecutor.stopExecutingtaskByVChannelName(ddn.vChannelName)
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fgMsg.dropCollection = true
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pChan := funcutil.ToPhysicalChannel(ddn.vChannelName)
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metrics.CleanupDataNodeCollectionMetrics(paramtable.GetNodeID(), ddn.collectionID, pChan)
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}
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case commonpb.MsgType_DropPartition:
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dpMsg := msg.(*msgstream.DropPartitionMsg)
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if dpMsg.GetCollectionID() == ddn.collectionID {
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log.Info("drop partition msg received",
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zap.Int64("collectionID", dpMsg.GetCollectionID()),
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zap.Int64("partitionID", dpMsg.GetPartitionID()),
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zap.String("vChanneName", ddn.vChannelName))
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fgMsg.dropPartitions = append(fgMsg.dropPartitions, dpMsg.PartitionID)
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}
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case commonpb.MsgType_Insert:
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imsg := msg.(*msgstream.InsertMsg)
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if imsg.CollectionID != ddn.collectionID {
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log.Info("filter invalid insert message, collection mis-match",
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zap.Int64("Get collID", imsg.CollectionID),
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zap.Int64("Expected collID", ddn.collectionID))
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continue
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}
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if ddn.tryToFilterSegmentInsertMessages(imsg) {
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log.Info("filter insert messages",
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zap.Int64("filter segmentID", imsg.GetSegmentID()),
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zap.Uint64("message timestamp", msg.EndTs()),
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zap.String("segment's vChannel", imsg.GetShardName()),
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zap.String("current vChannel", ddn.vChannelName))
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continue
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}
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rateCol.Add(metricsinfo.InsertConsumeThroughput, float64(proto.Size(&imsg.InsertRequest)))
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metrics.DataNodeConsumeBytesCount.
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WithLabelValues(fmt.Sprint(paramtable.GetNodeID()), metrics.InsertLabel).
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Add(float64(proto.Size(&imsg.InsertRequest)))
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metrics.DataNodeConsumeMsgCount.
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WithLabelValues(fmt.Sprint(paramtable.GetNodeID()), metrics.InsertLabel, fmt.Sprint(ddn.collectionID)).
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Inc()
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log.Debug("DDNode receive insert messages",
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zap.Int("numRows", len(imsg.GetRowIDs())),
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zap.String("vChannelName", ddn.vChannelName))
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fgMsg.insertMessages = append(fgMsg.insertMessages, imsg)
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case commonpb.MsgType_Delete:
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dmsg := msg.(*msgstream.DeleteMsg)
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log.Debug("DDNode receive delete messages",
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zap.Int64("numRows", dmsg.NumRows),
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zap.String("vChannelName", ddn.vChannelName))
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if dmsg.CollectionID != ddn.collectionID {
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log.Warn("filter invalid DeleteMsg, collection mis-match",
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zap.Int64("Get collID", dmsg.CollectionID),
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zap.Int64("Expected collID", ddn.collectionID))
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continue
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}
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rateCol.Add(metricsinfo.DeleteConsumeThroughput, float64(proto.Size(&dmsg.DeleteRequest)))
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metrics.DataNodeConsumeBytesCount.
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WithLabelValues(fmt.Sprint(paramtable.GetNodeID()), metrics.DeleteLabel).
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Add(float64(proto.Size(&dmsg.DeleteRequest)))
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metrics.DataNodeConsumeMsgCount.
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WithLabelValues(fmt.Sprint(paramtable.GetNodeID()), metrics.DeleteLabel, fmt.Sprint(ddn.collectionID)).
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Inc()
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fgMsg.deleteMessages = append(fgMsg.deleteMessages, dmsg)
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}
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}
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fgMsg.startPositions = append(fgMsg.startPositions, msMsg.StartPositions()...)
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fgMsg.endPositions = append(fgMsg.endPositions, msMsg.EndPositions()...)
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return []Msg{&fgMsg}
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}
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func (ddn *ddNode) tryToFilterSegmentInsertMessages(msg *msgstream.InsertMsg) bool {
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if msg.GetShardName() != ddn.vChannelName {
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return true
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}
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// Filter all dropped segments
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if ddn.isDropped(msg.GetSegmentID()) {
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return true
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}
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// Filter all sealed segments until current Ts > Sealed segment cp
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for segID, segInfo := range ddn.sealedSegInfo {
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if msg.EndTs() > segInfo.GetDmlPosition().GetTimestamp() {
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delete(ddn.sealedSegInfo, segID)
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}
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}
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if _, ok := ddn.sealedSegInfo[msg.GetSegmentID()]; ok {
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return true
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}
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// Filter all growing segments until current Ts > growing segment dmlPosition
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if si, ok := ddn.growingSegInfo[msg.GetSegmentID()]; ok {
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if msg.EndTs() <= si.GetDmlPosition().GetTimestamp() {
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return true
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}
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delete(ddn.growingSegInfo, msg.GetSegmentID())
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}
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return false
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}
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func (ddn *ddNode) isDropped(segID UniqueID) bool {
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for _, droppedSegmentID := range ddn.droppedSegmentIDs {
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if droppedSegmentID == segID {
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return true
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}
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}
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return false
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}
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func (ddn *ddNode) Close() {}
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func newDDNode(ctx context.Context, collID UniqueID, vChannelName string, droppedSegmentIDs []UniqueID,
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sealedSegments []*datapb.SegmentInfo, growingSegments []*datapb.SegmentInfo, compactor *compactionExecutor,
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) (*ddNode, error) {
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baseNode := BaseNode{}
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baseNode.SetMaxQueueLength(Params.DataNodeCfg.FlowGraphMaxQueueLength.GetAsInt32())
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baseNode.SetMaxParallelism(Params.DataNodeCfg.FlowGraphMaxParallelism.GetAsInt32())
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dd := &ddNode{
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ctx: ctx,
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BaseNode: baseNode,
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collectionID: collID,
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sealedSegInfo: make(map[UniqueID]*datapb.SegmentInfo, len(sealedSegments)),
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growingSegInfo: make(map[UniqueID]*datapb.SegmentInfo, len(growingSegments)),
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droppedSegmentIDs: droppedSegmentIDs,
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vChannelName: vChannelName,
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compactionExecutor: compactor,
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}
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dd.dropMode.Store(false)
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for _, s := range sealedSegments {
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dd.sealedSegInfo[s.GetID()] = s
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}
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for _, s := range growingSegments {
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dd.growingSegInfo[s.GetID()] = s
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}
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log.Info("ddNode add sealed and growing segments",
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zap.Int64("collectionID", collID),
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zap.Int("No. sealed segments", len(sealedSegments)),
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zap.Int("No. growing segments", len(growingSegments)),
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)
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return dd, nil
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}
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