[Openstack] Problem with neutron

Mārtiņš Jakubovičs martins at hostnet.lv
Fri Dec 20 15:05:44 UTC 2013


Hello,

I am going forward with trying to implementing neutron in XenServer. 
Looking in documentation that is possible with DevStack. 
https://wiki.openstack.org/wiki/QuantumDevstackOvsXcp But there is one 
catch, in section, where you enable services(ENABLED_SERVICES) there is 
two more services, which isn't in havana release: q-agt and q-domua. So, 
if I am right, this two services make possible to run necessary neutron 
commands from domU in to dom0. So, where I can get this services? Or 
maybe all this is included in neutron-plugin-openvswitch-agent package, 
just need to configure it right?
In /etc/neutron/rootwrap.conf is xenapi section, so I suppose that it is 
required to run neutron + XenServer. And there is 
/usr/bin/neutron-rootwrap-xen-dom0 script, which login to XenServer and 
run commands.

And additional question:

Is anyone trying to live migrate with OpenStack + neutron + XenServer 
setup? I can't live migration, got error: 
http://paste.openstack.org/show/55683/
Maybe this is because my neutron setup is not working completely, but 
maybe this is bug in live migration ...

Thanks.

On 2013.12.16. 21:33, Amir Sadoughi 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 
> <mailto: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 
>>> <mailto: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 
>>>>> <mailto: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]
>>>>>>
>>>>>>     _______________________________________________
>>>>>>     Mailing list:
>>>>>>     http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>>>>     Post to     : openstack at lists.openstack.org
>>>>>>     <mailto:openstack at lists.openstack.org>
>>>>>>     Unsubscribe :
>>>>>>     http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>>>>
>>>>>
>>>>>
>>>>>     _______________________________________________
>>>>>     Mailing list:
>>>>>     http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>>>     Post to     : openstack at lists.openstack.org
>>>>>     <mailto:openstack at lists.openstack.org>
>>>>>     Unsubscribe :
>>>>>     http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> Mailing list: 
>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>> Post to     : openstack at lists.openstack.org 
>>>> <mailto:openstack at lists.openstack.org>
>>>> Unsubscribe : 
>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>
>>
>
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