I had the machine this Enhance VM is virtualized on go down when the power failed the day before yesterday, because of a UPS issue. Not sure if I'll need to send the new UPS back or not yet, but since then I've run into two issues on that server that caused pages to stop serving:
- The web site went down because it couldn't connect to redis. A reboot fixed this quickly.
- Maybe 18 hours later it went down saying it a mysqli php adapter was missing, but again a quick reboot brought everything up cleanly.
Litespeed installed, the only thing running that matters as far as load is a forum running Xenforo, I'm not seeing any errors in any logs (other than the forum software, which throws a redis error as the web site was connecting after reboot before redis was ready). 48G memory assigned, only 16G was in use during the failure.
Any thoughts on where I should be looking next?