[Engine-devel] Watchdog support Feature

[Dave Allan]

On Tue, Jan 29, 2013 at 08:06:44AM -0500, Doron Fediuck wrote:
> 
> 
> ----- Original Message -----
> > From: "Dave Allan" <dallan at redhat.com>
> > To: "Itamar Heim" <iheim at redhat.com>
> > Cc: "engine-devel" <engine-devel at ovirt.org>
> > Sent: Monday, January 28, 2013 7:23:25 PM
> > Subject: Re: [Engine-devel] Watchdog support Feature
> > 
> > On Fri, Jan 25, 2013 at 08:34:27AM -0800, Itamar Heim wrote:
> > > On 24/01/2013 06:19, Laszlo Hornyak wrote:
> > > >Hi,
> > > >
> > > >Watchdog support in engine will add watchdog to the ovirt UI and
> > > >REST API. Watchdog cards will be mainly used in HA vm's.
> > > >
> > > >http://www.ovirt.org/Features/Watchdog_engine_support
> > > >
> > > >Your feedback is welcome!
> > > >
> > > >Thank you,
> > > >Laszlo
> > > >_______________________________________________
> > > >Engine-devel mailing list
> > > >Engine-devel at ovirt.org
> > > >http://lists.ovirt.org/mailman/listinfo/engine-devel
> > > >
> > > 
> > > looks like a nice, simple, addition.
> > > dave, anyone more intimate with the watchdog worth giving another
> > > look?
> > 
> > I had a look at the ovirt feature page and asked some libvirt folks
> > as
> > well, and it all looks good to me except that the libvirt
> > documentation says that an event when watchdog fires will be added in
> > the future.  That event has been added.  The watchdog should work
> > pretty much identically to the physical world: configure the virtual
> > watchdog card in the guest hardware description and install the
> > watchdog daemon in the guest.
> > 
> > Dave
> 
> Thanks Dave.
> Do you happen do know why the shutdown action is not recommended?

Yes--it requires guest cooperation which it's unlikely to get if the
guest has gotten into a state where the watchdog fires.

Dave