[libvirt] memory ballooning and nova

[Raymond Durand]

Thanks.

Is it possible to enable/disable which parameters are triggered by Nova on
Libvirt? ie.
-device virtio-balloon
-pci-device isa-serial

Regards,

2015-02-25 11:30 GMT+01:00 Daniel P. Berrange <berrange at redhat.com>:

> On Wed, Feb 25, 2015 at 11:27:23AM +0100, Raymond Durand wrote:
> > Is Libvirt memory ballooning managed by nova in OpenStack Juno?
> >
> > Is Libvirt memory ballooning independent from the  OpenStack "RAM
> > allocation ratio"? and allow a VM to expand (page out) even though the
> > overall RAM allocation ratio is already at his maximum?
>
> OpenStack doesn't do anything with ballooning. You get the allocated
> memory at boot and it never gets changed thereafter.
>
> Regards,
> Daniel
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