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I was working on
https://blueprints.launchpad.net/nova/+spec/find-host-and-evacuate-instance.
Hadn't looked at it because of FF, will restore the patch soon.

Thanks
Mahesh
Developer | ThoughtWorks | +1 (210) 716 1767


On Tue, Oct 8, 2013 at 5:20 PM, Alex Glikson <GLIKSON at il.ibm.com> wrote:

> Seems that this can be broken into 3 incremental pieces. First, would be
> great if the ability to schedule a single 'evacuate' would be finally
> merged (*
> https://blueprints.launchpad.net/nova/+spec/find-host-and-evacuate-instance
> *<https://blueprints.launchpad.net/nova/+spec/find-host-and-evacuate-instance>).
> Then, it would make sense to have the logic that evacuates an entire host (
> *
> https://blueprints.launchpad.net/python-novaclient/+spec/find-and-evacuate-host
> *<https://blueprints.launchpad.net/python-novaclient/+spec/find-and-evacuate-host>).
> The reasoning behind suggesting that this should not necessarily be in Nova
> is, perhaps, that it *can* be implemented outside Nova using the indvidual
> 'evacuate' API. Finally, it should be possible to close the loop and invoke
> the evacuation automatically as a result of a failure detection (not clear
> how exactly this would work, though). Hopefully we will have at least the
> first part merged soon (not sure if anyone is actively working on a rebase).
>
> Regards,
> Alex
>
>
>
>
> From:        Syed Armani <dce3062 at gmail.com>
> To:        OpenStack Development Mailing List <
> openstack-dev at lists.openstack.org>,
> Date:        09/10/2013 12:04 AM
> Subject:        Re: [openstack-dev] [nova] automatically evacuate
> instances on compute failure
> ------------------------------
>
>
>
> Hi Folks,
>
> I am also very much curious about this. Earlier this bp had a dependency
> on query scheduler, which is now merged. It will be very helpful if anyone
> can throw some light on the fate of this bp.
>
> Thanks.
>
> Cheers,
> Syed Armani
>
>
> On Wed, Sep 25, 2013 at 11:46 PM, Chris Friesen <*
> chris.friesen at windriver.com* <chris.friesen at windriver.com>> wrote:
> I'm interested in automatically evacuating instances in the case of a
> failed compute node.  I found the following blueprint that covers exactly
> this case:
> *
> **
> https://blueprints.launchpad.net/nova/+spec/evacuate-instance-automatically
> *<https://blueprints.launchpad.net/nova/+spec/evacuate-instance-automatically>
>
> However, the comments there seem to indicate that the code that
> orchestrates the evacuation shouldn't go into nova (referencing the Havana
> design summit).
>
> Why wouldn't this type of behaviour belong in nova?  (Is there a summary
> of discussions at the summit?)  Is there a recommended place where this
> sort of thing should go?
>
> Thanks,
> Chris
>
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