Been having at least a week of this now I think, but every morning between 4 and 5am the server becomes unresponsive. Almost every time I can't ssh to it at all, and I have to hard reset.
This morning I was able to SSH into it, the web ui only loaded the banner the first time I tried, but nothing after any subsequent tries. There was not much ram available, maybe ~600MB according to top. I did try to stop dockers, and most did, but they weren't using much ram according to docker status. Plex was using ~12GB which would not stop when using docker stop. The system has 64GB of ram. One time last week when I was able to ssh into it (about the only other time I could), top was showing kswapd using 100% cpu. On that day reboot never worked.
Today /sbin/reboot did eventually reboot, however it was still considered an unclean shutdown. Before today I did increase some shutdown timeouts to ~5minutes. I did manage to get the diagnostics via ssh today before it rebooted, and I have attached. I would appreciate any insight. One last thing, I did upgrade to 6.11.5 last week and I think that was when I started having these problems so I downgraded, and still have the problems. I could be mistaken that the problems occurred before I upgraded.
tower-diagnostics-20230227-0720.zip