Google Interview Question | System Design: Design a Distributed Database

[@maximizedchen6875]

for the ticket master flash sale scenario, how can you shard the hell out of it? I think in most cases, for example concerts, there is only 3 types of tickets on sale (VIP section, middle section, back section). are we going shard it based on ticket id or user id? if we shard the 3 types of tickets into difference instances, how can we achieve serializable?

[@NBetweenStations]

How would versioning and snapshots work with this design?