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Looks like AckAll won't work on a pull subscription

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This commit is contained in:
Neil Alexander 2022-08-31 13:45:36 +01:00
parent 7c837c57c4
commit 92c4a96003
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GPG key ID: A02A2019A2BB0944
1 changed files with 17 additions and 19 deletions
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36
setup/jetstream/helpers.go
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@ -34,14 +34,6 @@ func JetStreamConsumer(
} }
}() }()
// If the batch size is greater than 1, we will want to acknowledge all
// received messages in the batch. Below we will send an acknowledgement
// for the most recent message in the batch and AckAll will ensure that
// all messages that came before it are also acknowledged implicitly.
if batch > 1 {
opts = append(opts, nats.AckAll())
}
name := durable + "Pull" name := durable + "Pull"
sub, err := js.PullSubscribe(subj, name, opts...) sub, err := js.PullSubscribe(subj, name, opts...)
if err != nil { if err != nil {
@ -49,6 +41,7 @@ func JetStreamConsumer(
return fmt.Errorf("nats.SubscribeSync: %w", err) return fmt.Errorf("nats.SubscribeSync: %w", err)
} }
go func() { go func() {
nextmsg:
for { for {
// If the parent context has given up then there's no point in // If the parent context has given up then there's no point in
// carrying on doing anything, so stop the listener. // carrying on doing anything, so stop the listener.
@ -89,21 +82,26 @@ func JetStreamConsumer(
if len(msgs) < 1 { if len(msgs) < 1 {
continue continue
} }
msg := msgs[len(msgs)-1] // most recent message, in case of AckAll for _, msg := range msgs {
if err = msg.InProgress(nats.Context(ctx)); err != nil { if err = msg.InProgress(nats.Context(ctx)); err != nil {
logrus.WithContext(ctx).WithField("subject", subj).Warn(fmt.Errorf("msg.InProgress: %w", err)) logrus.WithContext(ctx).WithField("subject", subj).Warn(fmt.Errorf("msg.InProgress: %w", err))
sentry.CaptureException(err) sentry.CaptureException(err)
continue continue nextmsg
}
} }
if f(ctx, msgs) { if f(ctx, msgs) {
if err = msg.AckSync(nats.Context(ctx)); err != nil { for _, msg := range msgs {
logrus.WithContext(ctx).WithField("subject", subj).Warn(fmt.Errorf("msg.AckSync: %w", err)) if err = msg.AckSync(nats.Context(ctx)); err != nil {
sentry.CaptureException(err) logrus.WithContext(ctx).WithField("subject", subj).Warn(fmt.Errorf("msg.AckSync: %w", err))
sentry.CaptureException(err)
}
} }
} else { } else {
if err = msg.Nak(nats.Context(ctx)); err != nil { for _, msg := range msgs {
logrus.WithContext(ctx).WithField("subject", subj).Warn(fmt.Errorf("msg.Nak: %w", err)) if err = msg.Nak(nats.Context(ctx)); err != nil {
sentry.CaptureException(err) logrus.WithContext(ctx).WithField("subject", subj).Warn(fmt.Errorf("msg.Nak: %w", err))
sentry.CaptureException(err)
}
} }
} }
} }