Re: Ongoing issue with libvirt-xen driver for Openstack Nova

[Boris Derzhavets <bderzhavets@hotmail.com>]

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> Date: Thu, 16 Apr 2015 16:12:49 +0100
> From: anthony.perard@citrix.com
> To: bderzhavets@hotmail.com
> CC: xen-devel@lists.xen.org
> Subject: Re: [Xen-devel] Ongoing issue with libvirt-xen driver for Openstack Nova
> 
> On Thu, Apr 16, 2015 at 01:05:44PM +0100, Ian Campbell wrote:
> > On Thu, 2015-04-16 at 06:46 -0400, Boris Derzhavets wrote:
> > 
> > > > Was this just the tail of the log or the complete thing?
> > > 
> > > 
> > > No it was in the middle . I am attaching xen-hotplug.log.gz
> > 
> > Thanks, I think this shows that as expected our hotplug scripts have not
> > been responsible for bringing vif1.0 up before renaming, so something
> > else must be doing it.
> > 
> > If not some openstack component perhaps something like network-manager?
> > Or some other udev rules perhaps?
> 
> It is likely to be something done in Neutron. You can always try to read
> the logs of the different services (q-svc q-agt q-dhcp q-l3 q-meta) to
> check what is happening to the network interface (vif1.0). There also could
> be something wrong with Nova that will not set network properly in this
> case. Or some other compatibility issue...
> 
> In anycase, the combo openstack-libvirt-xen works better with the default
> set of services runned by devstack (as long as they don't switch yet to
> Neutron).

 My core stuff  is supposed to be RDO Kilo (RH) on Fedoras, like now it is RDO Juno.
 RH deprecated nova-networking a while ago , I guess  in Havana release.
 Devstack&&stack.sh on Ubuntu 14.04  is just a test-bed for the most recent nova. 
 
Thank you  very much for your support and getting in touch with explanation.
I couldn't imagine , that slide show http://www.slideshare.net/xen_com_mgr/openstack-xenfinal
is for nova networking

Boris

> 
> I will try to setup devstack with your local.conf to reproduce the issue.
> 
> -- 
> Anthony PERARD
 		 	   		  

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