A while ago I was having problems with CPU and memory use spiking which could only be alleviated by restarting the webserver and the instance. When I updated rebased it went away for good. I never learned what the problem actually was.
Discussion
Here's some retard shit that happened last week. The site wouldn't load. I couldn't figure out why. Ssh in everything is running.
Try to route trace the url, times out. Try to curl the url, kicks back no ssl cert. 🙄
Apparently, certbot didn't send me a warning email and I didn't have it calendared. My browsers didn't tell me because the site was cached. 😒