openstack team mailing list archive

[Gary Kotton <gkotton@xxxxxxxxxx>]

On 02/19/2013 03:47 PM, Sylvain Bauza wrote:
> Le 19/02/2013 13:31, Gary Kotton a écrit :
> > On 02/19/2013 01:57 PM, Sylvain Bauza wrote:
> > > Hi,
> > >
> > > I progressed in investigating the bug. I forgot to mention I was 
> > > following "Provided Router/single tenancy" setup.
> > > So, at reboot, my tap/qg/qr network interfaces were down :
> > > 7: qg-c39e5df4-7f: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
> > >     link/ether fe:10:8c:d8:d8:ca brd ff:ff:ff:ff:ff:ff
> > >     inet 192.168.10.1/16 brd 192.168.255.255 scope global 
> > > qg-c39e5df4-7f
> > >     inet 192.168.10.2/32 brd 192.168.10.2 scope global qg-c39e5df4-7f
> > > 8: qr-f76e4668-fa: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
> > >     link/ether 52:93:35:8b:11:ff brd ff:ff:ff:ff:ff:ff
> > >     inet 10.0.0.1/24 brd 10.0.0.255 scope global qr-f76e4668-fa
> > > 9: tap2ed3cd8a-03: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
> > >     link/ether 0e:3e:e0:61:5e:b0 brd ff:ff:ff:ff:ff:ff
> > >     inet 10.0.0.2/24 brd 10.0.0.255 scope global tap2ed3cd8a-03
> > >
> > > So, a short 'ip link set <dev> up' for the three above fixed my 
> > > issue. Other terms, GRE tunneling is fine at reboot, only interface 
> > > status is wrong.
> > > Do you have any idea how to fix it ? I can't issue a 'post-up' 
> > > statement in /etc/network/interfaces and /etc/rc.local is quite a 
> > > ugly patch I think.
> >
> > The problem is as follows:
> > When you reboot the host the openvswitch will create the interfaces 
> > on restart. this causes problems with the dhcp and the l3 agents.
> > the solution to this is to run the quantum-ovs-cleanup utility on 
> > reboot prior to the dhcp and the l3 agents.
> >
> > thanks
> > Gary
>
> Thanks, got the bug# : https://bugs.launchpad.net/quantum/+bug/1091605
> As the fix is released in 2012.2.3, I have to patch manually or keep 
> my method (pref.) of deleting/creating bridges (as only Quantum is 
> using these bridges).

I am not sure. I know that in Fedora and in RHEL we ensure that the 
utility is run on boot (if the plugin os openvswitch). Not sure if the 
Ubuntu/Debian packagers have done the same. It is worthwhile notifying 
them about this. I think that Dan may know the relevant people (I do not 
know their names off hand)

Thanks
Gary

> Thanks for the quick answer.
> -Sylvain