Moin, I have been dealing with memory-leaks on a host running an nginx reverse proxy for some time. The host had been running 7.2 with nginx 1.23.1 (self compiled as i need some features not in the package) until May, which was fine.
After upgrading to 7.3 and nginx-1.24.0, i started to see heavy memory leakage over time. I initially attributed this to nginx, and solved the issue by ignoring it/throwing a bit more memory at the box for some time. However, I started debugging it now and could trace it to some commit between nginx 1.23.3 and 1.23.4; Currently, I am going through all commits to see with which version it first appears. However, clicking around this morning, i noticed that my primary NS shows a similar memory leakage for mysql/mariadb (runs powerdns with a mysql backend, both from packages) since the upgrade to 7.3 in May as well. One further host seems to show a significantly higher use of inactive memory since 7.3. I found one more host with mariadb that now shows a higher utilization of inactive memory (gitea+maria); However, other maria+X instances on 7.3 run fine. On the PowerDNS+Mysql host I also see gradually increasing CPU load along with the memory leakage. Restarting mysql and/or nginx resolves the issue for some time. I also saw the issue on a host running maria+nextcloud, where i fixed it by switching to postgres. Maria is still running there, but not receiving any requests, and the memory leak is gone. Images: https://rincewind.home.aperture-labs.org/~tfiebig/pdns-maria-cpu-year.png https://rincewind.home.aperture-labs.org/~tfiebig/pdns-maria-memory-year.png https://rincewind.home.aperture-labs.org/~tfiebig/nginx-rev-proxy-memory-year.png https://rincewind.home.aperture-labs.org/~tfiebig/gitea-maria-memory-year.png https://rincewind.home.aperture-labs.org/~tfiebig/nextcloud-maria-switched-to-postgres-memory-year.png All hosts are VMs on Linux/KVM hosts (proxmox), with a generic qemu-kvm processor as CPU type, running 7.3. Hence, I am no longer 100% convinced that this is an nginx problem. To help circling this in a bit closer (and maybe get it reproducible in a first step): Did anyone else experience memory leakage on openbsd with mariadb or a self-build >=nginx-1.23.4 (or other applications) since the upgrade to 7.3? With best regards, Tobias
