[Engine-devel] Guest Reboot

[David Jaša]

Hi,

Michal Skrivanek píše v Út 11. 06. 2013 v 10:19 +0200:
> On Jun 10, 2013, at 21:20 , David Jaša <djasa at redhat.com> wrote:
> 
> > Hi Martin,
> > 
> > there may be more kinds of reboot in context of RHEV: "warm" reboot that
> > keeps qemu process intact, or "cold" that would involve qemu process
> > termination and start of new one - and this could be done with keeping
> > of current configuration, or with applying settings that "take effect
> > after reboot" that have changed during VM runtime; and all of these can
> > be "soft" - when the guest OS reboots itself and "hard" when you perform
> > the reboot right away.
> we plan to have 2 of them which seem to make most sense
> "warm" without applying config changes and keeping qemu process (i.e. also keeps Run Once,Stateless, pooled VM config/state)
> "cold" which kills qemu and is completely driven by Engine, and applies config changes
> and a policy option in VM properties to specify whether you should forcibly proceed with reboot/shutdown when graceful methods fail/timeout
> 
> is there anything not covered for a typical user? 

I think you covered it all. Based on the original emails by Martin, I
presumed you only covered "warm" reboot, having "cold" reboot available
as well is cool.

David

> We intentionally don't want to provide all possible options, just those making sense. The feature is about providing a convenient shortcut.
> 
> Thanks,
> michal
> 
> > 
> > All of these have their use cases, so it should be documented what will
> > you implement, and you may expect somebody asking you to implement the
> > rest. ;)
> > 
> > David
> > 
> > 
> > Martin Betak píše v Pá 07. 06. 2013 v 12:32 -0400:
> >> Hi, engine-devel
> >> 
> >> Customers request the ability to reboot a VM with a single click so I started designing the overall architecture and planing out the required changes to the respective components. 
> >> You can find the wiki page for the initial draft at [1] and I would like to ask you for your input on my general design and potential issues that could arise in some corner cases.
> >> Please feel free to respond to this thread or add to the Issues section of [1].
> >> 
> >> Thanks in advance for your opinions :-)
> >> 
> >> Martin
> >> 
> >> [1] http://www.ovirt.org/Features/Guest_Reboot
> >> _______________________________________________
> >> Engine-devel mailing list
> >> Engine-devel at ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/engine-devel
> > 
> > -- 
> > 
> > David Jaša, RHCE
> > 
> > SPICE QE based in Brno
> > GPG Key:     22C33E24 
> > Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24
> > 
> > 
> > _______________________________________________
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> > Engine-devel at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/engine-devel
> 
> _______________________________________________
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-- 

David Jaša, RHCE

SPICE QE based in Brno
GPG Key:     22C33E24 
Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24


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