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

[Vimal Kumar]

-----
File "/usr/lib/python2.7/site-packages/neutronclient/client.py", line 239,
in authenticate\\n    content_type="application/json")\\n\', u\'  File
"/usr/lib/python2.7/site-packages/neutronclient/client.py", line 163, in
_cs_request\\n    raise exceptions.Unauthorized(message=body)\\n\',
u\'Unauthorized: {"error": {"message": "The request you have made requires
authentication.", "code": 401, "title": "Unauthorized"}}\\n\'].\n']
-----

Looks like HTTP connection to neutron server is resulting in 401 error.

Try enabling debug mode for neutron server and then tail
/var/log/neutron/server.log , hopefully you should get more info.


On Fri, Jul 11, 2014 at 7:13 PM, Benoit ML <ben42ml at gmail.com> wrote:

> Hello,
>
> Ok I see. Nova telles neutron/openvswitch to create the bridge qbr prior
> to the migration itself.
> I ve already activate debug and verbose ... But well i'm really stuck,
> dont know how and where to search/look ...
>
>
>
> Regards,
>
>
>
>
>
> 2014-07-11 15:09 GMT+02:00 Miguel Angel <miguelangel at ajo.es>:
>
> Hi Benoit,
>>
>>   A manual virsh migration should fail, because the
>> network ports are not migrated to the destination host.
>>
>>   You must investigate on the authentication problem itself,
>> and let nova handle all the underlying API calls which should happen...
>>
>>   May be it's worth setting nova.conf to debug=True
>>
>>
>>
>> ---
>> irc: ajo / mangelajo
>> Miguel Angel Ajo Pelayo
>> +34 636 52 25 69
>> skype: ajoajoajo
>>
>>
>> 2014-07-11 14:41 GMT+02:00 Benoit ML <ben42ml at gmail.com>:
>>
>> 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
>>>
>>> _______________________________________________
>>> Rdo-list mailing list
>>> Rdo-list at redhat.com
>>> https://www.redhat.com/mailman/listinfo/rdo-list
>>>
>>>
>>
>
>
> --
> --
> Benoit
>
> _______________________________________________
> Rdo-list mailing list
> Rdo-list at redhat.com
> https://www.redhat.com/mailman/listinfo/rdo-list
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>
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