[one-users] Fail-over from dead HV node

[Tino Vazquez]

Hi,

VMs shutdown by an admin directly interfacing the hypervisor (which is
not recommended, OpenNebula assumes an exclusive access to the
resources) get set into an UNKNOWN state. There could be also a
ON_UNKNOWN hook to deal with these.

Regards,

-Tino

--
Constantino Vázquez Blanco | dsa-research.org/tinova
Virtualization Technology Engineer / Researcher
OpenNebula Toolkit | opennebula.org



2010/11/11 SZÉKELYI Szabolcs <szekelyi at niif.hu>:
> On 2010. November 11. 15:25:33 Tino Vazquez wrote:
>> We are working on an extension of the hooks mechanism, so when a host
>> gets into the ERROR state a script can be triggered with information
>> about the (allegedly) running VMs in that host, so it can resume them
>> elsewhere.
>
> How do you plan to distinguish VMs that crashed due to host hardware failure
> from the ones those were shut down by their administrator from inside the WM?
>
> Thanks,
> --
> cc
>
>> --
>> Constantino Vázquez Blanco | dsa-research.org/tinova
>> Virtualization Technology Engineer / Researcher
>> OpenNebula Toolkit | opennebula.org
>>
>> On Fri, Oct 29, 2010 at 12:03 PM, Oscar Elfving <sofam84 at gmail.com> wrote:
>> > Hi,
>> > When a hypervisor node dies (or becomes inaccessible), how are you
>> > supposed to handle the machines that were running on it? ONE of course
>> > still lists the machines as running since it can't check the machine
>> > state. How are you guys handling it? In my case I have some single
>> > purpose webservers running on the nodes and if a hypervisor node dies, I
>> > would like to have some monitoring software start them up on one of the
>> > remaining nodes. Best regards,
>> > Oscar Elfving
>> > _______________________________________________
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>> > Users at lists.opennebula.org
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>>
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