Thanks for the question Andreas, Looking into this, I noticed the defaults are already 65536!
root@j:~# dpkg -s rabbitmq-server | grep Version Version: 3.9.13-1ubuntu0.22.04.2 root@j:~# cat /proc/$(pgrep -f rabbitmq)/limits | grep "Max open files" Max open files 65536 65536 files I thought wow, what a coincidence, maybe too much of a coincidence. It turns out that this default is _already_ available in the current Jammy version 3.9.13. Debian has set the cap via systemd service since 9 years ago[0]! ubuntu@ip-172-31-36-170:~$ sudo systemctl show rabbitmq-server.service --property=LimitNOFILE LimitNOFILE=65536 [0] - https://salsa.debian.org/openstack-team/third-party/rabbitmq- server/-/commit/6ced1e42f48d114edf9140ce6e04b1d6581515cd -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2060248 Title: MRE updates of rabbitmq-server for Jammy,Focal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rabbitmq-server/+bug/2060248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
