Is it possible to live migrate in lvmcluster

Incus
,
1

Hello there,

I recently try a lvmcluster over nvme/fabric. Is this the right command or do I need to optimize or enhanced settings for the lvmcluster drive?
incus storage create rnvme lvmcluster source=shared_vg lvm.vg_name=shared_vg --target=tnode1

In this case, I can easly moved a vm to another cluster member easly but in container side I have a problem. Can it be a bug?

Regards.
indiana@debian:~$ incus move testalpinec --target=tnode3
Error: Migration operation failure: Instance move to destination failed on source: Failed migration on source: Error from migration control target: Failed to activate LVM logical volume “shared_vg/containers_testalpinec”: Failed to run: lvchange --activate ey --ignoreactivationskip shared_vg/containers_testalpinec: exit status 5 (LV locked by other host: shared_vg/containers_testalpinec
Failed to lock logical volume shared_vg/containers_testalpinec.)

2

And the container was correctly stopped on the source?
I just tried here and I’m not having any problem on Incus 6.22.

bash-5.2# incus launch images:alpine/edge a1 --storage remote-nvme
Launching a1
bash-5.2# incus stop a1
bash-5.2# incus move a1 --target incus03
bash-5.2# incus start a1
bash-5.2# incus stop a1
bash-5.2# incus move a1 --target incus02
bash-5.2# incus move a1 --target incus01
bash-5.2# incus move a1 --target incus03
3

So this is a container exception, before moving the container to another host we need to stop them, right? Cos I can live migrate vm without stopping.

Regards.

4

Container live migration is basically not functional in general as the underlying technology (CRIU) needs a bunch of work to function on Incus.

We do have @amikhalitsyn who works for us now and will be looking at some container migration in the coming months which will then make this more relevant again.

5

Thanks Graber for the quick reply and the explanation.

Regards.