I was unfortunate to choose my containers name such that LXD thinks one is a
snapshot of the
other.
hm. Not sure whether this is the explanation. The volume of a snapshot
of test04 would be named *test04/second* and not *test04-second*. (at
least it is that scheme I get with 'lxc storage volume list pool2'(and
also is the naming scheme you use to delete snapshots)
So, if that naming has some sort of relevance as you suspect It smells
more like a bug then a feature
And what interesting is that you can only use a hyphen as a separator, not
an underscore.
can't confirm that neither. My snapshots all have names like
'pre-some_string' and have never seen any problem with that.
On 5/8/20 7:38 PM, Kees Bakker wrote:
Ah, I found out what is causing this. I was unfortunate to choose
my containers name such that LXD thinks one is a snapshot of the
other.
Simple test
root@rapper:~# lxc init images:ubuntu/bionic/amd64 -p pool2 test04-second
Creating test04-second
root@rapper:~# lxc init images:ubuntu/bionic/amd64 -p pool2 test04
Creating test04
root@rapper:~# lxc delete test04
Error: Error deleting storage volume: Cannot remove a volume that has snapshots
Also renaming (moving) doesn't work for this one.
root@rapper:~# lxc move test04 test04-first
Error: Rename instance: Failed to run: lvrename /dev/rapper-vg2/containers_test04---second
/dev/rapper-vg2/containers_test04--first---second: Existing logical volume
"containers_test04---second" not found in volume group "rapper-vg2"
And what interesting is that you can only use a hyphen as a separator, not
an underscore.
root@rapper:~# lxc init images:ubuntu/bionic/amd64 -p pool2 test04_first
Creating test04_first
Error: Failed instance creation: Invalid instance name: Name can only contain
alphanumeric and hyphen characters
Now I have to find a trick to mislead LXD so that the containers
can be deleted.
-- Kees
On 07-05-2020 09:03, Kees Bakker wrote:
Hi,
When I want to delete a container I'm getting this error
root@ijssel:~# lxc delete jenkins
Error: Error deleting storage volume: Cannot remove a volume that has snapshots
However, it has no snapshots.
root@ijssel:~# lxc info jenkins
Name: jenkins
Location: ijssel
Remote: unix://
Architecture: x86_64
Created: 2020/04/24 09:01 UTC
Status: Stopped
Type: container
Profiles: default
This is on Ubuntu 20.04 with lxd 4.0.1 (14954) from snap.
The storage is lvm.
There is a little bit of history that is of interest.
I had a container, "jenkins-template", with a snapshot.
Then I did a "lxc copy" of that snapshot to a new container,
called "jenkins", the one that I'm trying to delete now.
In the meantime I have already deleted the snapshot of "jenkins-template",
because I thought that would help.
Now, there are no snapshots at all on the system. Still, the
delete gives me that error.
root@ijssel:~# lxc list
+----------------------+---------+----------------------+------+-----------+-----------+----------+
| NAME | STATE | IPV4 | IPV6 | TYPE |
SNAPSHOTS | LOCATION |
+----------------------+---------+----------------------+------+-----------+-----------+----------+
| jenkins | STOPPED | | | CONTAINER | 0
| ijssel |
+----------------------+---------+----------------------+------+-----------+-----------+----------+
| jenkins-master1 | RUNNING | 172.16.16.28 (eth0) | | CONTAINER | 0
| ijssel |
+----------------------+---------+----------------------+------+-----------+-----------+----------+
| jenkins-sirti | RUNNING | 172.16.16.104 (eth0) | | CONTAINER | 0
| ijssel |
+----------------------+---------+----------------------+------+-----------+-----------+----------+
| jenkins-slave001 | RUNNING | 10.189.232.51 (eth0) | | CONTAINER | 0
| ijssel |
+----------------------+---------+----------------------+------+-----------+-----------+----------+
| jenkins-template | STOPPED | | | CONTAINER | 0
| ijssel |
+----------------------+---------+----------------------+------+-----------+-----------+----------+
| jenkins-template-old | STOPPED | | | CONTAINER | 0
| ijssel |
+----------------------+---------+----------------------+------+-----------+-----------+----------+
| mindmap | RUNNING | 172.16.16.166 (eth0) | | CONTAINER | 0
| ijssel |
+----------------------+---------+----------------------+------+-----------+-----------+----------+
root@ijssel:~# lvs
LV VG
Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
LXDThinPool local
twi-aotz-- <3,41t 3,83 3,34
containers_jenkins local
Vwi-a-tz-- <9,32g LXDThinPool 15,04
containers_jenkins--master1 local
Vwi-aotz-- <18,63g LXDThinPool 9,57
containers_jenkins--sirti
local Vwi-aotz-- 465,66g LXDThinPool 26,40
containers_jenkins--slave001 local
Vwi-aotz-- <9,32g LXDThinPool 9,91
containers_jenkins--template local
Vwi-a-tz-- <9,32g LXDThinPool 12,58
containers_jenkins--template--old local
Vwi-a-tz-- <9,32g LXDThinPool 28,78
containers_mindmap local
Vwi-aotz-- <18,63g LXDThinPool 14,75
images_8e0308c73fb2a54a048916915a3437208cfa6fd9fb7e176ad75557f49b8eb522 local
Vwi-a-tz-- <9,32g LXDThinPool 6,80
images_8e0f49176d7fc999becd40194a92231551c3d5109bd9327c443592443ba5e841 local
Vwi-a-tz-- <9,32g LXDThinPool 6,84
home vg0
-wi-ao---- 50,00g
root vg0
-wi-ao---- 100,00g
How can I delete the container "jenkins"?
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Gunnar Wagner | Yongfeng Village Group 12 #5, Pujiang Town, Minhang
District, 201112 Shanghai, P.R. CHINA
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