Open Stack

On 2015-11-21 4:47 PM, Belmiro Moreira wrote:
> Hi,
> We are about to upgrade nova to kilo using cells and we noticed 
> the resize/migrate functionality is not working properly.
> 
> The instance is correctly resized/migrated but fails to 
> “confirm resize” with the following trace:
> 
> 2015-11-21 22:40:49.804 26786 ERROR nova.api.openstack.wsgi
> [req-67f6a225-602c-426c-a33a-02c3f5e3093d belmiro
> 40c7729b-c8e5-432f-81d5-a41543c8bf13] Exception handling resource:
> 'NoneType' object has no attribute '__getitem__'
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi Traceback
> (most recent call last):
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/api/openstack/wsgi.py", line 821,
> in _process_stack
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi    
> action_result = self.dispatch(meth, request, action_args)
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/api/openstack/wsgi.py", line 911,
> in dispatch
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi     return
> method(req=request, **action_args)
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/api/openstack/compute/servers.py", line
> 823, in _action_confirm_resize
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi    
> self.compute_api.confirm_resize(context, instance)
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 233, in wrapped
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi     return
> func(self, context, target, *args, **kwargs)
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 222, in inner
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi     return
> function(self, context, instance, *args, **kwargs)
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 250, in
> _wrapped
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi     return
> fn(self, context, instance, *args, **kwargs)
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 203, in inner
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi     return
> f(self, context, instance, *args, **kw)
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 2452, in
> confirm_resize
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi     deltas =
> self._downsize_quota_delta(context, instance)
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 2537, in
> _downsize_quota_delta
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi     return
> API._resize_quota_delta(context, new_flavor, old_flavor, 1, -1)
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 2504, in
> _resize_quota_delta
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi     if
> compare * _quota_delta('vcpus') > 0:
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi   File
> "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 2501, in
> _quota_delta
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi     return
> sense * (new_flavor[resource] - old_flavor[resource])
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi TypeError:
> 'NoneType' object has no attribute '__getitem__'
> 2015-11-21 22:40:49.804 26786 TRACE nova.api.openstack.wsgi 
> 
> 
> 
> I can't reproduce in master so this must have been fixed meanwhile, 
> however I can't identify the patch.
> 
> Is someone experiencing the same problem? and know the commit that 
> fixed it?
> 

I think those bugs are related and can be found in 2015.1.1:
https://bugs.launchpad.net/nova/+bug/1459758
https://bugs.launchpad.net/nova/+bug/1446082

I know we had serious issues with flavor migrations not being properly
done without those patches.

-- 
Mathieu