[SOLVED] No space left on /var

[Por12]

I'm doing a test run using docker in an unpriviledged lxc (I know, and it will eventually be moved to my production VM). All is working fine and I have a few images (portainer, traefik), but when I try to deploy something larger (e.g. paperless) I'm finding an error that there is no space left on device despite having more than enough.

Error code: write /var/lib/docker/tmp/GetImageBlob1898286929: no space left on device

However, if I run df -h:

root@docker-internal:~# df -h
Filesystem                          Size  Used Avail Use% Mounted on
/dev/loop0                          3.9G  2.3G  1.4G  62% /
rpool/ROOT/pve-1                    458G   97G  362G  22% /docker
192.168.88.253:/mnt/user/paperless   26T  5.7T   20T  23% /paperless-storage
none                                492K  4.0K  488K   1% /dev
udev                                 32G     0   32G   0% /dev/tty
tmpfs                                32G     0   32G   0% /dev/shm
tmpfs                                13G  260K   13G   1% /run
tmpfs                               5.0M     0  5.0M   0% /run/lock
fuse-overlayfs                      3.9G  2.3G  1.4G  62% /var/lib/docker/fuse-overlayfs/720a17a4b13944fff06c081d03ed9c97fdd0f4664bdad0b164dcd99135ef1bb2/merged
fuse-overlayfs                      3.9G  2.3G  1.4G  62% /var/lib/docker/fuse-overlayfs/56bebdef47d2eaf406c6ba236af1a06c08ef373ba42be0f5054010c6bb25b8a2/merged

This is the actual space used on /var

root@docker-internal:/var# du -h -d1 -x /var
12K     /var/tmp
1.1G    /var/lib
748K    /var/spool
344K    /var/backups
237M    /var/cache
4.0K    /var/mail
19M     /var/log
4.0K    /var/data
4.0K    /var/opt
4.0K    /var/local
1.3G    /var

This is my lxc conf:

arch: amd64
cores: 2
features: fuse=1,keyctl=1,nesting=1
hostname: docker-internal
memory: 4096
mp0: /virtualization_hosts/docker_data,mp=/docker
mp1: /mnt/pve/paperless,mp=/paperless-storage,replicate=0
net0: name=eth0,bridge=vmbr0,hwaddr=32:D2:40:13:7C:16,ip=dhcp,type=veth
onboot: 1
ostype: debian
rootfs: local:501/vm-501-disk-0.raw,size=4G
swap: 512
tags: proxmox-helper-scripts
unprivileged: 1
lxc.idmap: u 0 0 1
lxc.idmap: u 1 100000 65535
lxc.idmap: g 0 0 1
lxc.idmap: g 1 100000 65535

Any ideas?

 

[ubu]

3.9G 2.3G 1.4G 62% /var/lib/docker/fuse-overlayfs/720a17a4b13944fff06c081d03ed9c97fdd0f4664bdad0b164dcd99135ef1bb2/merged

Your docker fuse filesystem is too small

 

[Por12]

I solved it resizing the root partition. I thought that having 62% used was enough.

Thanks!