On Jun 10, 2013, at 21:20 , David Jaša <djasa@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? 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@ovirt.org http://lists.ovirt.org/mailman/listinfo/engine-devel
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David Jaša, RHCE
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