Please help. I can't start my Docker service.

Here is history:

 

1. Woke up in the morning to find my Docker space at 100% (overnight all containers where updated). I found this by accident because I could not start one additional app. My total docker space is 20G.

2. I restarted UNRAID

3. When going to DOCKER tab, I saw error message "Docker Service failed to start"

4. When I go to MAIN tab, then click on "Cache", then System, then Docker... I see file "docker.img" with Size 21.5 GB  (this is clearly over 20 GB allocated for docker)

5. My cache, flash and all disks have sufficient space.

 

Which option is better?:

(A)

increase Docker size to, let's say 25 GB by going to Settings->Docker->Disable Docker-> increase "Docker vDisk size" to 25 GB?

(B)

is there any way I can see which apps are filling what space in the docker?

Consider also, when I try to execute in UNRAID cli command "docker system prune -a", I get error message "failed to start daemon: write /var/lib/docker/volumes/metadata.db: no space left on device"

(C)

Delete docker.img, and recreate it?

 

Thank you!

Had the same problem tonight went grocery shopping and when I got home we'de had a power outage I rebooted my server and restarted the server. The unit came up with docker disabled so I reenabled it. Looked at the Docker Tab and got Docker Service Failed to Start. Can you help I've attached the Diagnostics (tower-diagnostics-20241130-2055.zip)

Dave Marlow

Same here, restarted the server after replacing the parity disk and added another ssd to the cache pool and now docker fails to start. my file is also 21.5gb. Changing the docker image size limit to 30gb didn't make a difference.

Edited December 1, 20241 yr by Cypher01

here's my diagnostics file

unraid-diagnostics-20241201-1042.zip

@tmor2Please post the diagnostics.

 

Everyone else, please start your own thread, it can get confusing trying to help multiple user in the same one.