Open Stack

On 02/07/14 02:41, Mike Spreitzer wrote:
> Zane Bitter <zbitter at redhat.com> wrote on 07/01/2014 06:58:47 PM:
>
>  > On 01/07/14 15:47, Mike Spreitzer wrote:
>  > > In AWS, an autoscaling group includes health maintenance functionality
>  > > --- both an ability to detect basic forms of failures and an ability to
>  > > react properly to failures detected by itself or by a load balancer.
>  > >   What is the thinking about how to get this functionality in
> OpenStack?
>  > >   Since OpenStack's OS::Heat::AutoScalingGroup has a more general
> member
>  > > type, what is the thinking about what failure detection means (and how
>  > > it would be accomplished, communicated)?
>  > >
>  > > I have not found design discussion of this; have I missed something?
>  >
>  > Yes :)
>  >
>  > https://review.openstack.org/#/c/95907/
>  >
>  > The idea is that Convergence will provide health maintenance for _all_
>  > forms of resources in Heat. Once this is implemented, autoscaling gets
>  > it for free by virtue of that fact that it manages resources using Heat
>  > stacks.
>
> Ah, right.  My reading of that design is not quite so simple.  Note that
> in the User Stories section it calls for different treatment of Compute
> instances depending on whether they are in a scaling group.

I don't believe that is a correct reading.

- ZB