alt Hacker News> You're going to have down time for migrations unless you're very clever with your schema and/or replicas.
probably worth stating these kinds of design considerations/assumptions up-front
i'm sure lots of applications are fine with "downtime for [database] migrations" but lots more are definitely not, especially those interested in synthetic metrics like TPS
I'd argue the opposite most applications are fine with an hour of downtime a month and arguably much more downtime then that. The recent AWS and Cloudflare outages have proven that.
You can achieve zero downtime with Sqlite if you really need to.
TPS is not a synthetic metric when you cap out at 100 TPS because of Amdahl's law and your users having a power distribution.