[Rdo-list] Icehouse multi-node - Centos7 - live migration failed because of "network qbr no such device"

[Benoit ML]

Hello,

cat /etc/redhat-release
CentOS Linux release 7 (Rebuilt from: RHEL 7.0)


Regards,


2014-07-11 13:40 GMT+02:00 Boris Derzhavets <bderzhavets at hotmail.com>:

> Could you please post /etc/redhat-release.
>
> Boris.
>
> ------------------------------
> Date: Fri, 11 Jul 2014 11:57:12 +0200
> From: ben42ml at gmail.com
> To: rdo-list at redhat.com
> Subject: [Rdo-list] Icehouse multi-node - Centos7 - live migration failed
> because of "network qbr no such device"
>
>
> Hello,
>
> I'm working on a multi-node setup of openstack Icehouse using centos7.
> Well i have :
>   - one controllor node with all server services thing stuff
>   - one network node with openvswitch agent, l3-agent, dhcp-agent
>   - two compute node with nova-compute and neutron-openvswitch
>   - one storage nfs node
>
> NetworkManager is deleted on compute nodes and network node.
>
> My network use is configured to use vxlan.  I can create VM,
> tenant-network, external-network, routeur, assign floating-ip to VM, push
> ssh-key into VM, create volume from glance image, etc... Evrything is
> conected and reacheable. Pretty cool :)
>
> But when i try to migrate VM things go wrong ...  I have configured  nova,
> libvirtd and qemu to use migration through libvirt-tcp.
> I have create and exchanged ssh-key for nova user on all  node. I have
> verified userid and groupid of nova.
>
> Well nova-compute log, on the target compute node, :
> 2014-07-11 11:45:02.749 6984 TRACE nova.compute.manager [instance:
> a5326fe1-4faa-4347-ba29-159fce26a85c] RemoteError: Remote error:
> Unauthorized {"error": {"m
> essage": "The request you have made requires authentication.", "code":
> 401, "title": "Unauthorized"}}
>
>
> So well after searching a lots in all logs, i have fount that i cant
> simply migration VM between compute node with a simple virsh :
> virsh migrate instance-00000084 qemu+tcp://<dest>/system
>
> The error is :
> erreur :Cannot get interface MTU on 'qbr3ca65809-05': No such device
>
> Well when i look on the source hyperviseur the bridge "qbr3ca65809" exists
>  and have a network tap device.  And moreover i manually create qbr3ca65809
> on the target hypervisor, virsh migrate succed !
>
> Can you help me plz ?
> What can i do wrong ? Perhpas neutron must create the bridge before
> migration but didnt for a mis configuration ?
>
> Plz ask anything you need !
>
> Thank you in advance.
>
>
> The full nova-compute log attached.
>
>
>
>
>
>
> Regards,
>
> --
> --
> Benoit
>
> _______________________________________________ Rdo-list mailing list
> Rdo-list at redhat.com https://www.redhat.com/mailman/listinfo/rdo-list
>



-- 
--
Benoit
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rdoproject.org/pipermail/dev/attachments/20140711/d2c3502f/attachment.html>