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Merge pull request #12739 from LeoYang90/optimization_watch_prevkv

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create event do not need prevkv range
This commit is contained in:
Gyuho Lee 2021-03-10 09:48:42 -08:00 committed by GitHub
commit 3ead91ca3e
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1 changed files with 5 additions and 1 deletions
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6
server/etcdserver/api/v3rpc/watch.go
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@ -391,7 +391,7 @@ func (sws *serverWatchStream) sendLoop() {
sws.mu.RUnlock()
for i := range evs {
events[i] = &evs[i]
if needPrevKV {
if needPrevKV && !IsCreateEvent(evs[i]) {
opt := mvcc.RangeOptions{Rev: evs[i].Kv.ModRevision - 1}
r, err := sws.watchable.Range(context.TODO(), evs[i].Kv.Key, nil, opt)
if err == nil && len(r.KVs) != 0 {
@ -501,6 +501,10 @@ func (sws *serverWatchStream) sendLoop() {
}
}
func IsCreateEvent(e mvccpb.Event) bool {
return e.Type == mvccpb.PUT && e.Kv.CreateRevision == e.Kv.ModRevision
}
func sendFragments(
wr *pb.WatchResponse,
maxRequestBytes int,