Just checked the documentation I used, it advised these optimisations for 4GB model. I should just comment out the fast sync line?
db_max_open_files = 200
fast-sync = 1024
Discussion
I’m not sure. It’s been about a year since I’ve synced a Fulcrum node. What I remember is that I failed to sync 2 or 3 times using the fast option, then succeeded without it on the first try. 🤷♀️