Gilles
August 11, 2021, 8:23pm
1
Hi, I’m having trouble removing a specific container:
$ lxc list | grep nodered
| nodered | RUNNING | 192.xx.xx.xx (eth0) | xxxxxxxxxxxxxx (eth0) | CONTAINER | 19 |
| noderedbak | STOPPED | | | CONTAINER | 0 |
$ lxc delete noderedbak
Error: Error deleting storage volume: Cannot remove a volume that has snapshots
$ lxc info noderedbak
Name: noderedbak
Location: none
Remote: unix://
Architecture: i686
Created: 2018/11/28 21:12 UTC
Status: Stopped
Type: container
Profiles: default
lxd is at version 4.15, storage is btrfs (and has always been) so I’m not sure what ‘volume’ refers to in the error message.
stgraber
August 11, 2021, 9:14pm
2
Can you show lxd sql global "SELECT * FROM storage_volumes"?
Gilles
August 11, 2021, 9:39pm
3
Thanks for the quick response. Here’s the output you requested. It’s a shortened/redacted version. (Original is huge; I only removed lines that definitely aren’t nodered-related.)
+------+------------------------------------------------------------------+-----------------+---------+------+-------------+------------+--------------+ | id | name | storage_pool_id | node_id | type | description | project_id | content_type | +------+------------------------------------------------------------------+-----------------+---------+------+-------------+------------+--------------+
... | 108 | noderedbak | 1 | 1 | 0 | | 1 | 0 | | 109 | noderedbak/afterupgradeto0.18 | 1 | 1 | 0 | | 1 | 0 |
| 110 | noderedbak/beforeupgradeto0.18 | 1 | 1 | 0 | | 1 | 0 |
| 111 | noderedbak/before-NUT | 1 | 1 | 0 | | 1 | 0 |
| 125 | noderedbak/before-alpinev3.8-nodered0.19 | 1 | 1 | 0 | | 1 | 0 | | 126 | noderedbak/after-alpinev3.8-nodered0.19 | 1 | 1 | 0 | | 1 | 0 | ...
| 470 | 06448968297acf4a1bfd100026b84ae50c19412da9750f0694d2fa30f6e25cb3 | 1 | 1 | 1 | | 1 | 0 | | 471 | 06448968297acf4a1bfd100026b84ae50c19412da9750f0694d2fa30f6e25cb3 | 4 | 1 | 1 | | 1 | 0 | ...
| 3108 | nodered | 1 | 1 | 0 | | 1 | 0 |
| 3109 | nodered/alpine3.10-but-before-npm | 1 | 1 | 0 | | 1 | 0 |
| 3137 | grafana | 1 | 1 | 0 | | 1 | 0 |
| 3186 | nodered/fixed-timezone | 1 | 1 | 0 | | 1 | 0 |
| 3186 | nodered/fixed-timezone | 1 | 1 | 0 | | 1 | 0 |
| 3192 | mosquitto/still-v37 | 1 | 1 | 0 | | 1 | 0 | | 3193 | mosquitto/v310-working-websockets | 1 | 1 | 0 | | 1 | 0 |
| 3195 | nodered/with-basic-knx-working | 1 | 1 | 0 | | 1 | 0 |
...
| 3462 | nodered/snap6 | 1 | 1 | 0 | | 1 | 0 |
| 3463 | noderedbak/snap37 | 1 | 1 | 0 | | 1 | 0 |
...
| 3510 | nodered/snap7 | 1 | 1 | 0 | | 1 | 0 |
| 3511 | noderedbak/snap38 | 1 | 1 | 0 | | 1 | 0 |
...
| 3547 | nodered/snap8 | 1 | 1 | 0 | | 1 | 0 |
| 3548 | noderedbak/snap39 | 1 | 1 | 0 | | 1 | 0 |
...
| 3582 | nodered/snap9 | 1 | 1 | 0 | | 1 | 0 |
| 3583 | noderedbak/snap40 | 1 | 1 | 0 | | 1 | 0 |
...
| 3625 | nodered/snap10 | 1 | 1 | 0 | | 1 | 0 |
| 3626 | noderedbak/snap41 | 1 | 1 | 0 | | 1 | 0 |
| 3627 | proxy80443ipv4/snap46 | 1 | 1 | 0 | | 1 | 0 |
| 3698 | f3af48e2d957baf4d10b471d149e3a84e71b890cf6fb45f9d971fd314e405373 | 1 | 1 | 1 | | 1 | 0 |
| 3913 | c081ac4d38ad1cc3d94e9d8d5209a884bcb69a65cb59fca9168ae598ffeb6bc5 | 1 | 1 | 1 | | 1 | 0 |
| 4891 | 091b1efac72f71fb68d16856d176611c8f2db8cf766872d50c9add06fe0ecc17 | 1 | 1 | 1 | | 1 | 0 |
...
| 6898 | cea91a28441af36f088f3ae8b637499061518ea2d83c7560a2f7f33d74298968 | 1 | 1 | 1 | | 1 | 0 |
...
| 7006 | 700f048266dfbd64153bba64b0aca3ac104326b8870f143ac88dc394e5bbc42c | 1 | 1 | 1 | | 1 | 0 |
| 7043 | 02fca1d87c34645378ee119cf879eba2c4bbad6a748a8b30da8a8e1c8561c4e1 | 4 | 1 | 1 | | 1 | 0 |
+------+------------------------------------------------------------------+-----------------+---------+------+-------------+------------+--------------+
I see that there are still some snapshots listed that are not in the output of lxc info noderedbak.
Also there seem to be some old snapshots on disk:
$ sudo ls -l /mnt/ssdbtrfs/lxd/containers-snapshots/noderedbak/
total 0
drwx--x--x+ 1 root root 78 Nov 28 2018 snap21
drwx--x--x+ 1 root root 78 Nov 28 2018 snap22
drwx--x--x+ 1 root root 78 Nov 28 2018 snap23
I’m not sure how my installation got into that situation, it’s rather stable and except for the large number of containers and snapshots I tend to be conservative with it.
tomp
August 12, 2021, 8:11am
4
Can you remove those remaining snap directories?
1 Like
Gilles
August 12, 2021, 8:41am
5
That did it! I’m just confused that I had a similar issue recently (Lxc export: "Snapshot ... in storage but not expected" - #3 by Gilles ) but with a different error message.