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https://gitee.com/milvus-io/milvus.git
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118 lines
3.0 KiB
Go
118 lines
3.0 KiB
Go
package querynode
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import (
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"context"
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"go.uber.org/zap"
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"github.com/zilliztech/milvus-distributed/internal/log"
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"github.com/zilliztech/milvus-distributed/internal/msgstream"
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"github.com/zilliztech/milvus-distributed/internal/proto/internalpb"
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"github.com/zilliztech/milvus-distributed/internal/util/flowgraph"
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)
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type dataSyncService struct {
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ctx context.Context
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cancel context.CancelFunc
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collectionID UniqueID
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fg *flowgraph.TimeTickedFlowGraph
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dmStream msgstream.MsgStream
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msFactory msgstream.Factory
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replica ReplicaInterface
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}
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func newDataSyncService(ctx context.Context, replica ReplicaInterface, factory msgstream.Factory, collectionID UniqueID) *dataSyncService {
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ctx1, cancel := context.WithCancel(ctx)
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service := &dataSyncService{
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ctx: ctx1,
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cancel: cancel,
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collectionID: collectionID,
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fg: nil,
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replica: replica,
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msFactory: factory,
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}
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service.initNodes()
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return service
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}
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func (dsService *dataSyncService) start() {
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dsService.fg.Start()
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}
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func (dsService *dataSyncService) close() {
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dsService.cancel()
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if dsService.fg != nil {
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dsService.fg.Close()
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}
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log.Debug("dataSyncService closed", zap.Int64("collectionID", dsService.collectionID))
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}
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func (dsService *dataSyncService) initNodes() {
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// TODO: add delete pipeline support
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dsService.fg = flowgraph.NewTimeTickedFlowGraph(dsService.ctx)
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var dmStreamNode node = dsService.newDmInputNode(dsService.ctx)
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var filterDmNode node = newFilteredDmNode(dsService.replica, dsService.collectionID)
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var insertNode node = newInsertNode(dsService.replica, dsService.collectionID)
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var serviceTimeNode node = newServiceTimeNode(dsService.ctx, dsService.replica, dsService.msFactory, dsService.collectionID)
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dsService.fg.AddNode(dmStreamNode)
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dsService.fg.AddNode(filterDmNode)
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dsService.fg.AddNode(insertNode)
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dsService.fg.AddNode(serviceTimeNode)
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// dmStreamNode
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var err = dsService.fg.SetEdges(dmStreamNode.Name(),
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[]string{},
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[]string{filterDmNode.Name()},
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)
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if err != nil {
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log.Error("set edges failed in node:", zap.String("node name", dmStreamNode.Name()))
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}
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// filterDmNode
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err = dsService.fg.SetEdges(filterDmNode.Name(),
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[]string{dmStreamNode.Name()},
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[]string{insertNode.Name()},
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)
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if err != nil {
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log.Error("set edges failed in node:", zap.String("node name", filterDmNode.Name()))
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}
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// insertNode
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err = dsService.fg.SetEdges(insertNode.Name(),
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[]string{filterDmNode.Name()},
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[]string{serviceTimeNode.Name()},
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)
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if err != nil {
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log.Error("set edges failed in node:", zap.String("node name", insertNode.Name()))
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}
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// serviceTimeNode
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err = dsService.fg.SetEdges(serviceTimeNode.Name(),
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[]string{insertNode.Name()},
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[]string{},
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)
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if err != nil {
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log.Error("set edges failed in node:", zap.String("node name", serviceTimeNode.Name()))
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}
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}
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func (dsService *dataSyncService) seekSegment(position *internalpb.MsgPosition) error {
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err := dsService.dmStream.Seek(position)
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if err != nil {
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return err
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}
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return nil
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}
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