[MM3-users] Re: Mailman shutting down Hyperkitty: Request too large

Arte Chambers via Mailman-users writes:

The output from systemctl status after mailman has failed

~$ sudo systemctl status mailman3.service
× mailman3.service - GNU Mailing List Manager
     Loaded: loaded (/etc/systemd/system/mailman3.service; enabled; preset:
enabled)
     Active: failed (Result: oom-kill) since Thu 2025-01-30 17:00:27 UTC;

Ah, yes, that is as dead as the Monty Python parrot. How much memory and swap does the system have? (Note, you probably don't want to be using swap at all most of the time, this is to understand the "killed because the system ran out of free memory" oom-kill message.)

For comparison, I found that OOM kills were fairly frequent (~ once in 1-3 days) on a Digital Ocean droplet with 2GB of memory, and there was a dramatic reduction but not an elimination of OOM kills when I bumped it to 4GB. The two active apps were Mailman and Mediawiki, plus whatever Digital Ocean likes to run on its standard droplets.

Steve