My server has 4GB of RAM, and 4GB of Swap. The rebuild just stops at the database system is ready to accept connections and does not complete and the forum remains down. I can restore it to the Droplet backup (again) which will take me back to a working 3.2 forum, but it’d be better to resolve this.
# free
total used free shared buff/cache available
Mem: 3919 286 1443 20 2189 3360
Swap: 4095 2 4093
Total: 8015 288 5537