[Openstack-operators] Problem with Heavy Network IO and Dnsmasq

Thomas Vachon vachon at sessionm.com
Wed Aug 15 13:58:35 UTC 2012


On Wed, Aug 15, 2012 at 8:54 AM, Thomas Vachon <vachon at sessionm.com> wrote:
>
> On Wed, Aug 15, 2012 at 8:53 AM, Narayan Desai <narayan.desai at gmail.com> wrote:
> > On Wed, Aug 15, 2012 at 7:24 AM, Thomas Vachon <vachon at sessionm.com> wrote:
> >
> >> I am also on Precise.  Downing/Up'ing the interface via VNC did work.
> >> How exactly did you setup vhost_net, can you provide your libvirt?
> >
> > Hm, that might mean that isn't the problem, but this is an easy enough
> > thing to check.
> >
> > Setting up vhost_net is pretty easy; it is auto-detected by kvm, so
> > all you need to do is modprobe it on the hypervisor.
> >  -nld
>
> Found the docs saying that.  It might help, I will report back on this
> thread when I run the tests in a bit

OK, I lost all connectivity between nova-network and my vm's.  DNSMasq
is running and I added the vhost_net module (and confirmed libvirt
sees it).  Do I need to do something to the guests now too?



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