Restarting nova compute has an exception

[Gary Kotton]

(latest havana code - libvirt driver)

1. launch a nova vm
2. see that the instance is deployed on the compute node
3. restart the compute node

get the following exception:

2013-10-22 05:46:53.711 30742 INFO nova.openstack.common.rpc.common [req-57056535-4ecd-488a-a75e-ff83341afb98 None None] Connected to AMQP server on 192.168.10.111:5672
2013-10-22 05:46:53.737 30742 AUDIT nova.service [-] Starting compute node (version 2013.2)
2013-10-22 05:46:53.814 30742 ERROR nova.openstack.common.threadgroup [-] 'NoneType' object has no attribute 'network_info'
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup Traceback (most recent call last):
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/nova/openstack/common/threadgroup.py", line 117, in wait
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup x.wait()
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/nova/openstack/common/threadgroup.py", line 49, in wait
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup return self.thread.wait()
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 168, in wait
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup return self._exit_event.wait()
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup return hubs.get_hub().switch()
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 187, in switch
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup return self.greenlet.switch()
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 194, in main
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup result = function(*args, **kwargs)
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/nova/openstack/common/service.py", line 65, in run_service
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup service.start()
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/nova/service.py", line 154, in start
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup self.manager.init_host()
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 786, in init_host
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup self._init_instance(context, instance)
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 664, in _init_instance
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup net_info = compute_utils.get_nw_info_for_instance(instance)
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup File "/usr/lib/python2.7/dist-packages/nova/compute/utils.py", line 349, in get_nw_info_for_instance
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup return instance.info_cache.network_info
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup AttributeError: 'NoneType' object has no attribute 'network_info'
2013-10-22 05:46:53.814 30742 TRACE nova.openstack.common.threadgroup

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/53174

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/53174
Committed: http://github.com/openstack/nova/commit/a907c2f06b65dca7c2c0ea6119fe649864c6de11
Submitter: Jenkins
Branch: master

commit a907c2f06b65dca7c2c0ea6119fe649864c6de11
Author: Chris Behrens <email address hidden>
Date: Tue Oct 22 17:14:51 2013 +0000

    Fix getting nwinfo for Instance obj

    This fixes the get_nw_info_for_instance() method in nova/compute/utils.

    If an instance object has no 'info_cache' (means we lack an entry in the
    instance_info_caches table for the instance), don't try to access the
    'network_info' attribute. Just return a network model with empty
    networking information like the dict version of an instance would do.

    Change-Id: Ib1f49f10cefeefc55a87fea69b6fbc772c978dca
    Closes-bug: 1243291

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/havana
Review: https://review.openstack.org/54556

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/54556
Committed: http://github.com/openstack/nova/commit/847c564c34282b77990fc612dccd84283d0aa274
Submitter: Jenkins
Branch: stable/havana

commit 847c564c34282b77990fc612dccd84283d0aa274
Author: Chris Behrens <email address hidden>
Date: Tue Oct 22 17:14:51 2013 +0000

    Fix getting nwinfo for Instance obj

    This fixes the get_nw_info_for_instance() method in nova/compute/utils.

    If an instance object has no 'info_cache' (means we lack an entry in the
    instance_info_caches table for the instance), don't try to access the
    'network_info' attribute. Just return a network model with empty
    networking information like the dict version of an instance would do.

    Change-Id: Ib1f49f10cefeefc55a87fea69b6fbc772c978dca
    Closes-bug: 1243291
    (cherry picked from commit a907c2f06b65dca7c2c0ea6119fe649864c6de11)