mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-02 11:59:00 +08:00
129 lines
2.7 KiB
Go
129 lines
2.7 KiB
Go
package proxy
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import (
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"context"
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"log"
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"sync"
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"time"
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"github.com/apache/pulsar-client-go/pulsar"
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"github.com/zilliztech/milvus-distributed/internal/allocator"
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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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)
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type tickCheckFunc = func(Timestamp) bool
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type timeTick struct {
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lastTick Timestamp
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currentTick Timestamp
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interval time.Duration
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pulsarProducer pulsar.Producer
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tsoAllocator *allocator.TimestampAllocator
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tickMsgStream *msgstream.PulsarMsgStream
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peerID UniqueID
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wg sync.WaitGroup
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ctx context.Context
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cancel func()
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timer *time.Ticker
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checkFunc tickCheckFunc
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}
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func newTimeTick(ctx context.Context,
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tsoAllocator *allocator.TimestampAllocator,
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interval time.Duration,
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checkFunc tickCheckFunc) *timeTick {
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ctx1, cancel := context.WithCancel(ctx)
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t := &timeTick{
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ctx: ctx1,
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cancel: cancel,
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tsoAllocator: tsoAllocator,
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interval: interval,
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peerID: Params.ProxyID(),
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checkFunc: checkFunc,
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}
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t.tickMsgStream = msgstream.NewPulsarMsgStream(t.ctx, Params.MsgStreamTimeTickBufSize())
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pulsarAddress := Params.PulsarAddress()
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t.tickMsgStream.SetPulsarClient(pulsarAddress)
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t.tickMsgStream.CreatePulsarProducers(Params.ProxyTimeTickChannelNames())
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return t
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}
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func (tt *timeTick) tick() error {
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if tt.lastTick == tt.currentTick {
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ts, err := tt.tsoAllocator.AllocOne()
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if err != nil {
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return err
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}
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tt.currentTick = ts
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}
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if !tt.checkFunc(tt.currentTick) {
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return nil
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}
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msgPack := msgstream.MsgPack{}
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timeTickMsg := &msgstream.TimeTickMsg{
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BaseMsg: msgstream.BaseMsg{
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HashValues: []int32{int32(Params.ProxyID())},
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},
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TimeTickMsg: internalpb.TimeTickMsg{
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MsgType: internalpb.MsgType_kTimeTick,
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PeerID: tt.peerID,
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Timestamp: tt.currentTick,
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},
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}
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msgPack.Msgs = append(msgPack.Msgs, timeTickMsg)
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err := tt.tickMsgStream.Produce(&msgPack)
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if err != nil {
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log.Printf("proxy send time tick error: %v", err)
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} else {
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//log.Printf("proxy send time tick message")
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}
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tt.lastTick = tt.currentTick
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return nil
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}
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func (tt *timeTick) tickLoop() {
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defer tt.wg.Done()
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tt.timer = time.NewTicker(tt.interval)
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for {
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select {
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case <-tt.timer.C:
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if err := tt.tick(); err != nil {
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log.Printf("timeTick error")
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}
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case <-tt.ctx.Done():
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return
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}
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}
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}
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func (tt *timeTick) Start() error {
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tt.lastTick = 0
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ts, err := tt.tsoAllocator.AllocOne()
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if err != nil {
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return err
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}
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tt.currentTick = ts
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tt.tickMsgStream.Start()
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tt.wg.Add(1)
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go tt.tickLoop()
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return nil
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}
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func (tt *timeTick) Close() {
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if tt.timer != nil {
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tt.timer.Stop()
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}
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tt.cancel()
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tt.tickMsgStream.Close()
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tt.wg.Wait()
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}
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