[Openstack-operators] Migrating instances according to load on host

Jesse Pretorius jesse.pretorius at gmail.com
Wed Dec 17 20:32:32 UTC 2014


The closest thing I've seen to that has been the IBM Resource Scheduler
(closed source) and this:

https://github.com/BMDan/OpenStack-Hypervisor-Balance

I've not tried it myself.

There have been discussions around doing this, but I've not seen code
submissions yet.
On Tue, 16 Dec 2014 at 20:19 Sławek Kapłoński <slawek at kaplonski.pl> wrote:

> Hello,
>
> Thanks for show me some direction what I should look for :)
> I search blueprints of nova with 'drs' and I found somethink like this:
> https://blueprints.launchpad.net/nova/+spec/resource-optimization-service
> It would be nice to have it in nova :)
>
> ---
> Best regards
> Slawek Kaplonski
> slawek at kaplonski.pl
>
> Dnia wtorek, 16 grudnia 2014 12:05:41 Abel Lopez pisze:
> > Sounds like you're describing VMWare DRS.
> > It's a pretty neat feature that aims to reduce outages during maintenance
> > and also reduce the impact of noisy neighbor.
> > To my knowledge, we don't have that today, but I haven't been following
> the
> > wishlist for nova
> > > On Dec 16, 2014, at 12:01 PM, Sławek Kapłoński <slawek at kaplonski.pl>
> > > wrote:
> > >
> > > Hello,
> > >
> > > I'm wondering is ther some solution (maybe separate project or some
> > > plugin)
> > > which allow to automatically live-migrate (or migrate when instances
> are
> > > stopped) instances between hosts according to load which instance
> generate
> > > on host. For example if there are 10 instances on host and all of then
> > > use lot cpu or ram some of them should be migrated to different (free)
> > > host. When there are instances which are do not heavy load - then
> should
> > > be migrated to one host where will be for example 15 such instances. Do
> > > you know about something like that for openstack?
> > >
> > > ---
> > > Best regards
> > > Slawek Kaplonski
> > > slawek at kaplonski.pl_______________________________________________
> > > OpenStack-operators mailing list
> > > OpenStack-operators at lists.openstack.org
> > > http://lists.openstack.org/cgi-bin/mailman/listinfo/
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