superfly/corrosion
Subscription channel can run out of capacity and drop events
Ouverte
#183 ouverte le 11 avr. 2024
buggood first issuehelp wanted
Métriques du dépôt
- Stars
- (1 817 étoiles)
- Métriques de merge PR
- (Métriques PR en attente)
Description
The broadcast channel used by subscriptions (https://github.com/superfly/corrosion/blob/93561d180e3ebbdd275c9b80b9663b6dcb46e2fa/crates/corro-agent/src/api/public/pubsub.rs#L621) can run out of capacity and skip the events in case the data is read really fast from the disk.
Somehow, in this case, forward_sub_to_sender simply stops forwarding any event - https://github.com/superfly/corrosion/blob/93561d180e3ebbdd275c9b80b9663b6dcb46e2fa/crates/corro-agent/src/api/public/pubsub.rs#L728
It looks like the select! never matches RecvError::Lagged for some reasons.