I have discovered from 2 different independent uptime monitors that my website was frequently going offline for a timeframe of about 10 minutes around midnight. Now the last few days I had more frequent and more prolonged outages of the website availability. Looking at my netdata statistics, I found out that I had yesterday almost for the entire day a 100% usage of an entire CPU, which is the maximum allowed usage in my docker stack configuration. There are several other CPU peaks, that seem to correspond somewhat with the outages of the uptime monitor, although the increased CPU usage seems to be always longer than the outages involved. Memory usage was between 1 GB and 1.4 GB for OpenLiteSpeed. At no point, the maximum capacity of my VPS was reached. What could be the cause of my excessive CPU usage or the unavailability of the webserver?
