> One second is a significant gap for data loss. Definitely agree. I would not, for example, create a financial transaction system that is not backed by an ACI

> One second is a significant gap for data loss. Definitely agree. I would not, for example, create a financial transaction system that is not backed by an ACID database that persists to disk. If you have time/interest, I'd love to know more about the problems encountered by your team when using redis. In my experience, the main problem is scaling it to multiple instances (because RAM grows linearly with use). If the team also encountered other reliability issues, it would be valuable knowledge to me and perhaps others.