a very small cluster can have 3 hosts, with the following configuration:
- 1 stateless process
- 1 transaction process
- 2 storage processes
on a 24GB RAM host (16GB if you use ssd-2, but at the cost of some performance)
if you want more performance you could spin up some small cloud server, and have the transaction processes on those
you do not need RAM on the host for the page cache, FDB does its own caching
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it is somewhat tedious to set up, but it pays off a lot, it is basically impossible to break the DB
I will manage to break it somehow