High CPU usage on few cores causes UnRaid server to reboot

[thmsdmmrtn]

Hello! I noticed that when I am doing transcoding in Plex, my server will reboot. I have partially resolved this issue by limiting Plex to two cores. If I allocate anything higher than two cores, it reboots. There isn't anything obvious on the UnRaid GUI side, other than some (not all) cores spiking to ~90% usage. The server then reboots. I do not believe I can get the logs as the computer reboots as soon as the spike happens.

 

I created my own LogStash container on the device using a base Ubuntu image and LogStash 7.17.9. Starting this container causes the server to reboot. I limited the docker run command to 1.0 cpus, and the reboot doesn't happen. LogStash shouldn't be an issue for the server. It REALLY isn't intensive, but for some reason, it makes two cores spike to ~90% usage and then reboots the server.

 

Has this been seen before? I don't believe that its a hardware issue, because I can run multiple containers that spike CPU usage with no issue. It has only happened with these two containers.

 

Is there a way to prevent this from happening, like dedicating a single core only to UnRaid processes?

 

UnRaid version: 6.11.5 (Pro)

Motherboard: ASUS H110M-R

Processor: Intel i7-7700 CPU @ 3.60GHz

 

Please let me know if I can provide more information!

[thmsdmmrtn]

I figured out the issue.

 

I did not have enough power. The CPU was drawing too much power when put under load from transcoding video. I upgraded the power supply from 550 watt to 1000 watt and all is well.