wal: send watch events only when needed
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parent
1e1ba89a3f
commit
0f9a5f9c4b
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@ -480,6 +480,7 @@ func (w *WalManager) Watch(ctx context.Context, revision int64) <-chan *WatchEle
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defer close(walCh)
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for wresp := range wch {
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we := &WatchElement{ChangeGroupsRevisions: make(changeGroupsRevisions)}
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send := false
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if wresp.Canceled {
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err := wresp.Err()
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@ -501,6 +502,7 @@ func (w *WalManager) Watch(ctx context.Context, revision int64) <-chan *WatchEle
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switch {
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case strings.HasPrefix(key, etcdWalsDir+"/"):
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send = true
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switch ev.Type {
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case mvccpb.PUT:
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var walData *WalData
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@ -514,6 +516,7 @@ func (w *WalManager) Watch(ctx context.Context, revision int64) <-chan *WatchEle
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}
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case strings.HasPrefix(key, etcdChangeGroupsDir+"/"):
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send = true
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switch ev.Type {
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case mvccpb.PUT:
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changeGroup := path.Base(string(ev.Kv.Key))
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@ -523,12 +526,17 @@ func (w *WalManager) Watch(ctx context.Context, revision int64) <-chan *WatchEle
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we.ChangeGroupsRevisions[changeGroup] = 0
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}
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case key == etcdPingKey:
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send = true
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default:
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continue
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}
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}
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walCh <- we
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if send {
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walCh <- we
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}
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}
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}()
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