qemu hook: event for source host too

Guy Godfroy guy.godfroy at gugod.fr
Thu Jan 23 12:43:12 UTC 2020


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

Le 22/01/2020 à 10:56, Guy Godfroy a écrit :
> 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
>
>
> -- 
> Envoyé de mon appareil Android avec Courriel K-9 Mail. Veuillez 
> excuser ma brièveté. 
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