So, how likely is it possible to get this feature (two new events for the qemu hook)?

That's right, I need also that second hook event.

For your information, for now I manage locks manually or via Ansible. To make hook manage locks, I still need to find out a secure way to run LVM commands from a non-root account, but this is another problem.

Le 22 janvier 2020 10:24:53 GMT+01:00, Michal Privoznik <mprivozn@redhat.com> a écrit :

On 1/22/20 9:23 AM, Guy Godfroy wrote:
I could launch `lvchange -asy` on the source host manually, but the aim 
of hooks is to automatically execute such commands and avoid human errors.

Agreed. However, you would need two hooks actually. One that is called 
on the source when the migration is started, and the other that is 
called on the destination when the migration is finished (so that you 
can promote the shared lock to the exclusive again). Just out of 
curiosity - how do you handle the lock promoting?

Michal

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