How re-deploy Cloud Functions affect event queue

Question

It takes several minutes to re-deploy Cloud Functions. What happens to the events triggered during deployment? Are they queued somewhere and to be processed after deployment, or completely lost?

Answer 1

Events should be queued. Behind the scenes, Cloud Functions uses a pubsub queue to deliver events generated by various event providers. It's intended that this queue is not lost when a function is redeployed.

Currently, however, Cloud Functions is in beta and there are no guarantees about availability.