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[Mark McLoughlin <markmc@xxxxxxxxxx>]

** Changed in: quantum/folsom
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1093637

Title:
  Printing a list of networks terminates with exception

Status in OpenStack Quantum (virtual network service):
  Fix Released
Status in quantum folsom series:
  Fix Released

Bug description:
  Hi,
  I did the following:
  1. Created 500 networks
  2. Deleted 500 networks

  Between 1 and 2 I did quantum net-list. The result was an exception:
  openstack@ubuntu-devstack:~/devstack$ quantum net-list
  'NoneType' object has no attribute 'network_type'
  openstack@ubuntu-devstack:~/devstack$ 

  More specifically:
  2012-12-24 11:57:00 10346 INFO quantum.openstack.common.rpc.common [-] Connected to AMQP server on localhost:5672
  2012-12-24 11:57:02 10346 ERROR quantum.api.v2.resource [-] index failed
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource Traceback (most recent call last):
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource   File "/opt/stack/quantum/quantum/api/v2/resource.py", line 96, in resource
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource     result = method(request=request, **args)
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource   File "/opt/stack/quantum/quantum/api/v2/base.py", line 225, in index
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource     return self._items(request, True, parent_id)
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource   File "/opt/stack/quantum/quantum/api/v2/base.py", line 191, in _items
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource     obj_list = obj_getter(request.context, **kwargs)
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource   File "/opt/stack/quantum/quantum/plugins/openvswitch/ovs_quantum_plugin.py", line 480, in get_networks
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource     self._extend_network_dict_provider(context, net)
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource   File "/opt/stack/quantum/quantum/plugins/openvswitch/ovs_quantum_plugin.py", line 293, in _extend_network_dict_provider
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource     network[provider.NETWORK_TYPE] = binding.network_type
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource AttributeError: 'NoneType' object has no attribute 'network_type'
  2012-12-24 11:57:02 10346 TRACE quantum.api.v2.resource 

  
  The problem is that the operation on the database is not atomic.
  Thanks
  Gary

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