I installed #ntopng on my #pihole box (b/c shared db) and, in about an hour, things completely blew-up
I also changed who hands out DHCP addresses from the router to the pihole, so that may have added some additional load
Didn't take long for my nameservices to come to a grinding halt; ntopng had became a runaway and exhausted CPU and RAM resources as load went through the roof - I had to stop & disable ntopng and allow the system to cool
I checked my hardware on various #pi ❤️ boards I have in dedicated services and was stunned to see that pi-hole had been happily chugging along, all this time, on a pi2b1
Nice.