mirror of
https://gitee.com/milvus-io/milvus.git
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82ccd4cec0
* Rename module Signed-off-by: Xiangyu Wang <xiangyu.wang@zilliz.com>
339 lines
8.5 KiB
Go
339 lines
8.5 KiB
Go
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "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 distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License.
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package querynode
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import (
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"context"
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"errors"
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"fmt"
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"math/rand"
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"strconv"
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"strings"
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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/msgstream"
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"github.com/milvus-io/milvus/internal/proto/internalpb"
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queryPb "github.com/milvus-io/milvus/internal/proto/querypb"
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)
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type task interface {
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ID() UniqueID // return ReqID
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SetID(uid UniqueID) // set ReqID
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Timestamp() Timestamp
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PreExecute(ctx context.Context) error
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Execute(ctx context.Context) error
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PostExecute(ctx context.Context) error
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WaitToFinish() error
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Notify(err error)
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OnEnqueue() error
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}
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type baseTask struct {
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done chan error
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ctx context.Context
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id UniqueID
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}
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type watchDmChannelsTask struct {
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baseTask
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req *queryPb.WatchDmChannelsRequest
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node *QueryNode
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}
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type loadSegmentsTask struct {
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baseTask
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req *queryPb.LoadSegmentsRequest
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node *QueryNode
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}
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type releaseCollectionTask struct {
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baseTask
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req *queryPb.ReleaseCollectionRequest
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node *QueryNode
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}
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type releasePartitionsTask struct {
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baseTask
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req *queryPb.ReleasePartitionsRequest
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node *QueryNode
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}
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func (b *baseTask) ID() UniqueID {
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return b.id
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}
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func (b *baseTask) SetID(uid UniqueID) {
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b.id = uid
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}
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func (b *baseTask) WaitToFinish() error {
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err := <-b.done
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return err
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}
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func (b *baseTask) Notify(err error) {
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b.done <- err
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}
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// watchDmChannelsTask
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func (w *watchDmChannelsTask) Timestamp() Timestamp {
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if w.req.Base == nil {
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log.Error("nil base req in watchDmChannelsTask", zap.Any("collectionID", w.req.CollectionID))
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return 0
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}
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return w.req.Base.Timestamp
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}
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func (w *watchDmChannelsTask) OnEnqueue() error {
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if w.req == nil || w.req.Base == nil {
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w.SetID(rand.Int63n(100000000000))
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} else {
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w.SetID(w.req.Base.MsgID)
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}
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return nil
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}
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func (w *watchDmChannelsTask) PreExecute(ctx context.Context) error {
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return nil
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}
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func (w *watchDmChannelsTask) Execute(ctx context.Context) error {
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log.Debug("starting WatchDmChannels ...", zap.String("ChannelIDs", fmt.Sprintln(w.req.ChannelIDs)))
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collectionID := w.req.CollectionID
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ds, err := w.node.getDataSyncService(collectionID)
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if err != nil || ds.dmStream == nil {
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errMsg := "null data sync service or null data manipulation stream, collectionID = " + fmt.Sprintln(collectionID)
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log.Error(errMsg)
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return errors.New(errMsg)
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}
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switch t := ds.dmStream.(type) {
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case *msgstream.MqTtMsgStream:
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default:
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_ = t
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errMsg := "type assertion failed for dm message stream"
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log.Error(errMsg)
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return errors.New(errMsg)
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}
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getUniqueSubName := func() string {
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prefixName := Params.MsgChannelSubName
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return prefixName + "-" + strconv.FormatInt(collectionID, 10)
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}
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// add request channel
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consumeChannels := w.req.ChannelIDs
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toSeekInfo := make([]*internalpb.MsgPosition, 0)
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toDirSubChannels := make([]string, 0)
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consumeSubName := getUniqueSubName()
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for _, info := range w.req.Infos {
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if len(info.Pos.MsgID) == 0 {
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toDirSubChannels = append(toDirSubChannels, info.ChannelID)
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continue
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}
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info.Pos.MsgGroup = consumeSubName
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toSeekInfo = append(toSeekInfo, info.Pos)
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log.Debug("prevent inserting segments", zap.String("segmentIDs", fmt.Sprintln(info.ExcludedSegments)))
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err := w.node.replica.addExcludedSegments(collectionID, info.ExcludedSegments)
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if err != nil {
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log.Error(err.Error())
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return err
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}
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}
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ds.dmStream.AsConsumer(toDirSubChannels, consumeSubName)
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for _, pos := range toSeekInfo {
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err := ds.dmStream.Seek(pos)
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if err != nil {
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errMsg := "msgStream seek error :" + err.Error()
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log.Error(errMsg)
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return errors.New(errMsg)
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}
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}
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log.Debug("querynode AsConsumer: " + strings.Join(consumeChannels, ", ") + " : " + consumeSubName)
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log.Debug("WatchDmChannels done", zap.String("ChannelIDs", fmt.Sprintln(w.req.ChannelIDs)))
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return nil
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}
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func (w *watchDmChannelsTask) PostExecute(ctx context.Context) error {
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return nil
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}
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// loadSegmentsTask
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func (l *loadSegmentsTask) Timestamp() Timestamp {
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if l.req.Base == nil {
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log.Error("nil base req in loadSegmentsTask", zap.Any("collectionID", l.req.CollectionID))
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return 0
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}
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return l.req.Base.Timestamp
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}
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func (l *loadSegmentsTask) OnEnqueue() error {
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if l.req == nil || l.req.Base == nil {
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l.SetID(rand.Int63n(100000000000))
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} else {
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l.SetID(l.req.Base.MsgID)
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}
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return nil
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}
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func (l *loadSegmentsTask) PreExecute(ctx context.Context) error {
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return nil
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}
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func (l *loadSegmentsTask) Execute(ctx context.Context) error {
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// TODO: support db
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collectionID := l.req.CollectionID
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partitionID := l.req.PartitionID
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segmentIDs := l.req.SegmentIDs
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fieldIDs := l.req.FieldIDs
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schema := l.req.Schema
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log.Debug("query node load segment", zap.String("loadSegmentRequest", fmt.Sprintln(l.req)))
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hasCollection := l.node.replica.hasCollection(collectionID)
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hasPartition := l.node.replica.hasPartition(partitionID)
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if !hasCollection {
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// loading init
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err := l.node.replica.addCollection(collectionID, schema)
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if err != nil {
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return err
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}
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l.node.replica.initExcludedSegments(collectionID)
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newDS := newDataSyncService(l.node.queryNodeLoopCtx, l.node.replica, l.node.msFactory, collectionID)
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// ignore duplicated dataSyncService error
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_ = l.node.addDataSyncService(collectionID, newDS)
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ds, err := l.node.getDataSyncService(collectionID)
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if err != nil {
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return err
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}
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go ds.start()
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l.node.searchService.startSearchCollection(collectionID)
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}
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if !hasPartition {
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err := l.node.replica.addPartition(collectionID, partitionID)
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if err != nil {
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return err
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}
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}
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err := l.node.replica.enablePartition(partitionID)
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if err != nil {
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return err
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}
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if len(segmentIDs) == 0 {
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return nil
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}
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err = l.node.loadService.loadSegmentPassively(collectionID, partitionID, segmentIDs, fieldIDs)
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if err != nil {
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return err
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}
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log.Debug("LoadSegments done", zap.String("segmentIDs", fmt.Sprintln(l.req.SegmentIDs)))
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return nil
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}
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func (l *loadSegmentsTask) PostExecute(ctx context.Context) error {
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return nil
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}
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// releaseCollectionTask
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func (r *releaseCollectionTask) Timestamp() Timestamp {
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if r.req.Base == nil {
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log.Error("nil base req in releaseCollectionTask", zap.Any("collectionID", r.req.CollectionID))
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return 0
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}
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return r.req.Base.Timestamp
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}
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func (r *releaseCollectionTask) OnEnqueue() error {
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if r.req == nil || r.req.Base == nil {
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r.SetID(rand.Int63n(100000000000))
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} else {
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r.SetID(r.req.Base.MsgID)
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}
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return nil
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}
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func (r *releaseCollectionTask) PreExecute(ctx context.Context) error {
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return nil
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}
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func (r *releaseCollectionTask) Execute(ctx context.Context) error {
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ds, err := r.node.getDataSyncService(r.req.CollectionID)
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if err == nil && ds != nil {
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ds.close()
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r.node.removeDataSyncService(r.req.CollectionID)
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r.node.replica.removeTSafe(r.req.CollectionID)
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r.node.replica.removeExcludedSegments(r.req.CollectionID)
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}
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if r.node.searchService.hasSearchCollection(r.req.CollectionID) {
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r.node.searchService.stopSearchCollection(r.req.CollectionID)
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}
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err = r.node.replica.removeCollection(r.req.CollectionID)
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if err != nil {
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return err
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}
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log.Debug("ReleaseCollection done", zap.Int64("collectionID", r.req.CollectionID))
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return nil
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}
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func (r *releaseCollectionTask) PostExecute(ctx context.Context) error {
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return nil
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}
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// releasePartitionsTask
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func (r *releasePartitionsTask) Timestamp() Timestamp {
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if r.req.Base == nil {
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log.Error("nil base req in releasePartitionsTask", zap.Any("collectionID", r.req.CollectionID))
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return 0
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}
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return r.req.Base.Timestamp
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}
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func (r *releasePartitionsTask) OnEnqueue() error {
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if r.req == nil || r.req.Base == nil {
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r.SetID(rand.Int63n(100000000000))
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} else {
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r.SetID(r.req.Base.MsgID)
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}
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return nil
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}
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func (r *releasePartitionsTask) PreExecute(ctx context.Context) error {
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return nil
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}
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func (r *releasePartitionsTask) Execute(ctx context.Context) error {
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for _, id := range r.req.PartitionIDs {
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err := r.node.loadService.segLoader.replica.removePartition(id)
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if err != nil {
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// not return, try to release all partitions
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log.Error(err.Error())
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}
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}
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return nil
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}
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func (r *releasePartitionsTask) PostExecute(ctx context.Context) error {
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return nil
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}
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