alt Hacker NewsThis assumes you don't do any sort of caching or use distributed systems that can cache the data and choose to hold off to write it all to the DB. The cached system can show both users the in-process transactions as well.
This assumes you don't do any sort of caching or use distributed systems that can cache the data and choose to hold off to write it all to the DB. The cached system can show both users the in-process transactions as well.
That introduces more questions, like are cache reads fully consistent