I've been facing the same problem here. I use prometheus collecting system metrics as attachment. Within approximately 30 seconds, the system’s memory usage spiked rapidly and was completely exhausted.
Further investigation showed that the process below was responsible for the issue. This single process consumed over 18 GB of memory root 655038 2.4 57.2 20603156 18366636 ? Rl 13:05 2:26 /usr/bin/python3 /usr/bin/unattended-upgrade --download-only The process reached 18 GB only because the system ran out of memory — otherwise, its memory usage would have continued to grow beyond this point. This abnormal behavior caused the system to exhaust all available RAM within seconds. ** Attachment added: "ubuntu memory issues due to unattended-upgrades" https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/2029120/+attachment/5929287/+files/memory%20leaking.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2029120 Title: /usr/bin/unattended-upgrade leaking and saturating RAM in 30 seconds To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/2029120/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
