[Openstack] Problem with neutron

Mārtiņš Jakubovičs martins at hostnet.lv
Mon Dec 16 19:23:18 UTC 2013


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]
>>>>
>>>>     _______________________________________________
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>>>>     Post to     : openstack at lists.openstack.org
>>>>     <mailto:openstack at lists.openstack.org>
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>>>>     http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>>>
>>>
>>>
>>>     _______________________________________________
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>>>     Post to     : openstack at lists.openstack.org
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>>
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>> Post to     : openstack at lists.openstack.org 
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