qemu hook: event for source host too

Guy Godfroy guy.godfroy at gugod.fr
Wed Jan 22 09:56:07 UTC 2020


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 at 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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