[Openstack] Problem with neutron

Jitendra Kumar Bhaskar jitendra.b at pramati.com
Tue Dec 17 14:49:41 UTC 2013


I have already Havana setup with 3 nodes controller, network(neutron) and
compute(KVM). I want to add compute node with XCP-1.6.10. But I am getting
error in nova-compute.log. I am running nova compute in debug more and
trying to fix the issue.



Regards
*Jitendra Bhaskar*






On Tue, Dec 17, 2013 at 6:34 PM, Mārtiņš Jakubovičs <martins at hostnet.lv>wrote:

>  Hello,
>
> You can follow this chat and you will be clear how I configure neutron.
> But I can say, that I only get instance to boot with network interface, but
> network it self is not working.
> All neutron services I installed from this guide:
> http://docs.openstack.org/havana/install-guide/install/apt/content/neutron-install-network-node.html
> After that as I mentioned in maillist:
>
>
> I created network in XenServer by command:
>
> xe network-create name-label=br-int
>
> With:
>
> xe network-list name-label=br-int params=bridge
>
> I get bridge name - xapi1 (maybe you got other name)
>
>
> After that in XenServer:
>
> ovs-vsctl add-br xapi1
>
> In nova-compute I changed integration_bridge to xapi1 in
> ovs_neutron_plugin.ini file. Than in nova-compute i run:
>
> ovs-vsctl del-br br-int
> ovs-vsctl add-br xapi1
>
> On 2013.12.17. 14:29, Jitendra Kumar Bhaskar wrote:
>
>   Hi Martins,
>
>  I am also trying with XCP 1.6 but getting some error. If possible can
> you please share reference docs any that you used ?
>
>  Error :
>  Compute node :
>
> 2013-12-17 17:57:31.934 3710 AUDIT nova.compute.resource_tracker [-] Free
> ram (MB): 65013
> 2013-12-17 17:57:31.935 3710 AUDIT nova.compute.resource_tracker [-] Free
> disk (GB): 908
> 2013-12-17 17:57:31.936 3710 AUDIT nova.compute.resource_tracker [-] Free
> VCPU information unavailable
>
>
>
>   Regards
> * Jitendra Bhaskar*
>
>
>
>
>
>
> On Tue, Dec 17, 2013 at 1:03 AM, Amir Sadoughi <
> amir.sadoughi at rackspace.com> wrote:
>
>>  Glad to hear it’s working better. To be honest, I haven’t gotten further
>> than this.  For my test environment, I end up using VNC to statically set
>> the neutron ports' fixed ip inside the instance.
>>
>>  From what I’ve read, I think at this point you have to setup the
>> metadata agent to run listening on 169.254.169.254 or you can try something
>> called config drive, but I haven’t bothered getting either working yet.
>>
>>  Hopefully someone else can chime in and help us out both!
>>
>>  Amir
>>
>>
>>
>>  On Dec 16, 2013, at 1:23 PM, Mārtiņš Jakubovičs <martins at hostnet.lv>
>> wrote:
>>
>>  Thanks you!
>>
>> At least something is going forward! :) That works, no more error and
>> instance boot's.
>> I created network in XenServer by command:
>>
>> xe network-create name-label=br-int
>>
>> With:
>>
>> xe network-list name-label=br-int params=bridge
>>
>> I get bridge name - xapi1
>>
>> After that in XenServer:
>>
>> ovs-vsctl add-br xapi1
>>
>> Got error: ovs-vsctl: cannot create a bridge named xapi1 because a bridge
>> named xapi1 already exists
>>
>> In nova-compute I changed integration_bridge to xapi1 in
>> ovs_neutron_plugin.ini file. Than in nova-compute i run:
>>
>> ovs-vsctl del-br br-int
>> ovs-vsctl add-br xapi1
>>
>> Now running instances get br-int network attached, but lookls like dhcp
>> is not working. Instance can't assign IP. Neutron and nova logs without
>> errors. Maybe is some ideas why dhcp is not working? Maybe some there is
>> some "painful spots" with dhcp? Or I missed something with configuration
>> from above?
>>
>> On 2013.12.16. 18:10, Amir Sadoughi wrote:
>>
>> My apologies, it looks like I scanned your original error message too
>> quickly.
>>
>>  “Found no network for bridge br-int” means you need to run `xe
>> network-create …`. AFAICT, xe network-create does not let you specify the
>> bridge name. So, from the result of xe network-create, you need to invoke
>> `ovs-vsctl add-br …` with the bridge name it specifies and reconfigure
>> Nova/Neutron/OVS plugin to use that bridge as the integration bridge.
>>
>>  Hopefully that advice will get you further.
>>
>>  Amir
>>
>>  On Dec 15, 2013, at 9:31 AM, Mārtiņš Jakubovičs <martins at hostnet.lv>
>> wrote:
>>
>>  With OpenStack + XenServer is much more questions than should be. For
>> example, what then is this -
>> http://openvswitch.org/openstack/documentation/
>>
>> Or Nicira NVP, where I can download it? Looks like it is now a part of
>> VMware.
>>
>> On 2013.12.15. 15:04, 郭龙仓 wrote:
>>
>> Yes , you must use Nicira NVP with XenServer
>>
>>
>> 2013/12/15 Mārtiņš Jakubovičs <martins at hostnet.lv>
>>
>>> Hello,
>>>
>>> Is this right tutorial<http://docs.openstack.org/havana/install-guide/install/apt/content/neutron-install-network-node.html>to install neutron in OpenStack with XenServer? In this
>>> section<http://docs.openstack.org/admin-guide-cloud/content/ch_networking.html#section_networking-intro>say's that OVS isn't supported in XenServer with neutron, is it right? So I
>>> must uninstall OVS and use this Nicira NVP?
>>>
>>>
>>> On 2013.12.13. 10:54, Mārtiņš Jakubovičs wrote:
>>>
>>> Hello all,
>>>
>>> I have problem with setting up neutron. I have latest havana realase and
>>> XenServer 6.2 as hypervisor.
>>> I did all step-by-step from this tutorial
>>> http://docs.openstack.org/havana/install-guide/install/apt/content/neutron-install-network-node.html
>>> All is going well, I can create network's, create router, create
>>> subnets, assign all that stuff... But when I start to create VM with
>>> selected network (demo-net or ext-net as describet in documentation), VM
>>> fail to build and erase from XenServer.
>>> Error message - Exception: Found no network for bridge br-int
>>>
>>> I looked in a lot of documentation, but can't find what I did wrong.
>>>
>>> Thanks.
>>>
>>> Full error message:
>>>
>>> 2013-12-13 10:49:01.677 27965 INFO nova.virt.xenapi.vm_utils
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] VBD
>>> OpaqueRef:9719605d-c322-d591-cede-01dd8940706f detach rejected, attempt
>>> 1/11
>>> 2013-12-13 10:49:03.174 27965 ERROR nova.utils
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Failed to spawn, rolling back
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Traceback (most recent call last):
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 491, in
>>> _spawn
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] setup_network_step(undo_mgr, vm_ref)
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 153, in
>>> inner
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     rv = f(*args, **kwargs)
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 453, in
>>> setup_network_step
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] self._create_vifs(instance, vm_ref,
>>> network_info)
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 1576, in
>>> _create_vifs
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     vm_ref=vm_ref, device=device)
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vif.py", line 55, in
>>> plug
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     self._session,
>>> vif['network']['bridge'])
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/network_utils.py", line
>>> 51, in find_network_with_bridge
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     raise Exception(_('Found no
>>> network for bridge %s') % bridge)
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Exception: Found no network for
>>> bridge br-int
>>> 2013-12-13 10:49:03.174 27965 TRACE nova.utils [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
>>> 2013-12-13 10:49:03.186 27965 WARNING nova.virt.xenapi.vm_utils
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] VM already halted, skipping
>>> shutdown...
>>> 2013-12-13 10:49:03.472 27965 ERROR nova.virt.xenapi.vm_utils
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] ['HANDLE_INVALID', 'VDI',
>>> 'OpaqueRef:e9a1bc76-8046-8afd-8997-caed632a80a5']
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils Traceback
>>> (most recent call last):
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vm_utils.py", line 439,
>>> in destroy_vdi
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils
>>> session.call_xenapi('VDI.destroy', vdi_ref)
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py", line 757, in
>>> call_xenapi
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils return
>>> session.xenapi_request(method, args)
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils   File
>>> "/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 133, in
>>> xenapi_request
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils result =
>>> _parse_result(getattr(self, methodname)(*full_params))
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils   File
>>> "/usr/local/lib/python2.7/dist-packages/XenAPI.py", line 203, in
>>> _parse_result
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils raise
>>> Failure(result['ErrorDescription'])
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils Failure:
>>> ['HANDLE_INVALID', 'VDI', 'OpaqueRef:e9a1bc76-8046-8afd-8997-caed632a80a5']
>>> 2013-12-13 10:49:03.472 27965 TRACE nova.virt.xenapi.vm_utils
>>> 2013-12-13 10:49:03.475 27965 ERROR nova.virt.xenapi.vm_utils
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] Unable to destroy VDI
>>> OpaqueRef:e9a1bc76-8046-8afd-8997-caed632a80a5
>>> 2013-12-13 10:49:03.476 27965 ERROR nova.compute.manager
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Instance failed to spawn
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Traceback (most recent call last):
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1407, in
>>> _spawn
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     block_device_info)
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py", line 216, in
>>> spawn
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     admin_password, network_info,
>>> block_device_info)
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 359, in
>>> spawn
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     network_info, block_device_info,
>>> name_label, rescue)
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 505, in
>>> _spawn
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
>>> undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/utils.py", line 979, in
>>> rollback_and_reraise
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     self._rollback()
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 491, in
>>> _spawn
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] setup_network_step(undo_mgr, vm_ref)
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 153, in
>>> inner
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     rv = f(*args, **kwargs)
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 453, in
>>> setup_network_step
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] self._create_vifs(instance, vm_ref,
>>> network_info)
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 1576, in
>>> _create_vifs
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     vm_ref=vm_ref, device=device)
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vif.py", line 55, in
>>> plug
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     self._session,
>>> vif['network']['bridge'])
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/network_utils.py", line
>>> 51, in find_network_with_bridge
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     raise Exception(_('Found no
>>> network for bridge %s') % bridge)
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Exception: Found no network for
>>> bridge br-int
>>> 2013-12-13 10:49:03.476 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
>>> 2013-12-13 10:49:03.548 27965 AUDIT nova.compute.manager
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Terminating instance
>>> 2013-12-13 10:49:04.174 27965 INFO nova.virt.xenapi.vmops
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Destroying VM
>>> 2013-12-13 10:49:04.179 27965 WARNING nova.virt.xenapi.vmops
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] VM is not present, skipping
>>> destroy...
>>> 2013-12-13 10:49:04.422 27965 ERROR nova.compute.manager
>>> [req-b9f302a8-8bb4-4336-92a2-eb9c8b96584e a7712da5cc054f819886dbe5a89429d5
>>> 76619aca43f841e0bed1a3b89ce8b426] [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Error: Found no network for bridge
>>> br-int
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Traceback (most recent call last):
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1037, in
>>> _build_instance
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] set_access_ip=set_access_ip)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1410, in
>>> _spawn
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     LOG.exception(_('Instance failed
>>> to spawn'), instance=instance)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1407, in
>>> _spawn
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     block_device_info)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/driver.py", line 216, in
>>> spawn
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     admin_password, network_info,
>>> block_device_info)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 359, in
>>> spawn
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     network_info, block_device_info,
>>> name_label, rescue)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 505, in
>>> _spawn
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
>>> undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/utils.py", line 979, in
>>> rollback_and_reraise
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     self._rollback()
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 491, in
>>> _spawn
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] setup_network_step(undo_mgr, vm_ref)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 153, in
>>> inner
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     rv = f(*args, **kwargs)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 453, in
>>> setup_network_step
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] self._create_vifs(instance, vm_ref,
>>> network_info)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vmops.py", line 1576, in
>>> _create_vifs
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     vm_ref=vm_ref, device=device)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/vif.py", line 55, in
>>> plug
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     self._session,
>>> vif['network']['bridge'])
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]   File
>>> "/usr/lib/python2.7/dist-packages/nova/virt/xenapi/network_utils.py", line
>>> 51, in find_network_with_bridge
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]     raise Exception(_('Found no
>>> network for bridge %s') % bridge)
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6] Exception: Found no network for
>>> bridge br-int
>>> 2013-12-13 10:49:04.422 27965 TRACE nova.compute.manager [instance:
>>> 5a8dff7e-e8e0-4885-8df5-27ba8bb6a0e6]
>>>
>>> _______________________________________________
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>>
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