nova-compute fails to start if an instance has no ip

[Vish Ishaya]

If nova an instance is created but fails to get an ip address, then nova-compute will traceback when it is started:

2013-02-21 16:01:01 TRACE nova Traceback (most recent call last):
2013-02-21 16:01:01 TRACE nova File "/usr/bin/nova-compute", line 48, in <module>
2013-02-21 16:01:01 TRACE nova service.wait()
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/service.py", line 659, in wait
2013-02-21 16:01:01 TRACE nova _launcher.wait()
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/service.py", line 192, in wait
2013-02-21 16:01:01 TRACE nova super(ServiceLauncher, self).wait()
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/service.py", line 162, in wait
2013-02-21 16:01:01 TRACE nova service.wait()
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 166, in wait
2013-02-21 16:01:01 TRACE nova return self._exit_event.wait()
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait
2013-02-21 16:01:01 TRACE nova return hubs.get_hub().switch()
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 177, in switch
2013-02-21 16:01:01 TRACE nova return self.greenlet.switch()
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 192, in main
2013-02-21 16:01:01 TRACE nova result = function(*args, **kwargs)
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/service.py", line 132, in run_server
2013-02-21 16:01:01 TRACE nova server.start()
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/service.py", line 398, in start
2013-02-21 16:01:01 TRACE nova self.manager.init_host()
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 296, in init_host
2013-02-21 16:01:01 TRACE nova self.driver.plug_vifs(instance, legacy_net_info)
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 437, in plug_vifs
2013-02-21 16:01:01 TRACE nova self.vif_driver.plug(instance, (network, mapping))
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/vif.py", line 111, in plug
2013-02-21 16:01:01 TRACE nova return self._get_configurations(instance, network, mapping)
2013-02-21 16:01:01 TRACE nova File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/vif.py", line 68, in _get_configurations
2013-02-21 16:01:01 TRACE nova conf.add_filter_param("IP", mapping['ips'][0]['ip'])
2013-02-21 16:01:01 TRACE nova IndexError: list index out of range
2013-02-21 16:01:01 TRACE nova

[Vish Ishaya (vishvananda)]

Workaround is to delete the instance without an ip assigned.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/folsom
Review: https://review.openstack.org/22583

[Jian Wen (wenjianhn)]

related bug 1076309