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From Ram Ganesh <Ram.Gan...@citrix.com>
Subject RE: Auto-scaling won't scale down
Date Wed, 03 Jul 2013 14:39:29 GMT
> -----Original Message-----
> From: Chip Childers [mailto:chip.childers@sungard.com]
> Sent: 03 July 2013 19:58
> To: dev@cloudstack.apache.org; fgaudreault@cloudops.com
> Subject: Re: Auto-scaling won't scale down
> 
> On Wed, Jul 03, 2013 at 10:14:38AM -0400, Francois Gaudreault wrote:
> > I am not sure if this is an expected behavior or not. Apparently, if
> > the VR is not setup, and you create the autoscale rules, nothing will
> > happen until you spin at least one vm in the network.
> 
> The reason makes sense technically, since you have 0 usage for the
> environment at that point.  Until there is actual usage, it will never trigger a
> threshold that would cause a scaling event.
> 
> Looking at this from a user's perspective, I actually don't see an issue with
> this implementation.  Does anyone know how AWS reacts in this scenario?

Chip,

One can configure minMembers while defining an autoscale rule in which case CS will provision
minMember of guestVMs even when there is no traffic. It should be true in case of AWS also.

Thanks,
RamG


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