I reboot every box monthly to flush out such issues. It’s not perfect, since it won’t catch things like circular dependencies or clusters failing to start if every member is down, but it gets lots of stuff.
I didn’t know there was a -delete option to find! I’ve been piping to xargs -0 for decades!
Meh. I lose power every 3 or 4 years on average. A UPS just doesn’t make sense for me. (When I lived in Virginia it was once a month on average, so for sure it made sense…)