At the moment it says:
total used free shared buff/cache available
Mem: 3.8Gi 2.1Gi 160Mi 1.0Gi 1.6Gi 488Mi
Swap: 0B 0B 0B
I don’t see oom, but the word memory appears in a few places about reserving and freeing memory.
The server was created with 4GB RAM, so Discourse didn’t automatically create a swapfile. Do you think it’s worth adding?