Docker Portainer limit CPU error

Sausageman · December 10, 2021 at 12:50 PM

I have set up Portainer and have several containers running happily on it, except WebGrabPlus, which seems to max out my RPi4's 4 CPUs and crashes LE.

I see that I should be able to limit the number of CPUs it uses, but I get the error "NanoCPUs can not be set, as your kernel does not support CPU cfs period/quota or the cgroup is not mounted".

The one thing about my containers that I didn't think was quite right but worked was setting my PUID and PGID to 0 as only root had access to my drives. I don't know if this would be contributing to my error...

elonesna · December 10, 2021 at 3:29 PM

I stopped using docker containers for security camera management due to high power consumption and replaced them with my own recording scripts. I also stopped using docker jellyfin containers due to the high power consumption in idle mode.

RPi4 is still a small mess with a small processing capacity. I am using an x86_64 processor with LE running 24/7 and before permanently installing a docker container I always check the CPU usage and temperature in working and idle conditions.

My server's CPU with all services running stays below 38-40ºC without using forced ventilation when the HDMI cable is disconnected, this seems great to me. To watch TV I use cheap TV Box clients with arm processor and without forced ventilation where the CPU temperature can reach 60-75ºC.

In short, if your WebGrabPlus docker container forces your CPU too much, look for another alternative, I'm using eleven custom internal EPG grabbers with tvheadend on the server without problems.

Docker Portainer limit CPU error

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