nova, cinder, quantum, heat and ceilometer have been updated to avoid a code path causing qpid exchange leaks The issue is discussed in detail at https://pad.lv/1178375 The Grizzly package versions containing the fix are: RDO-el6 novnc-0.4-8 openstack-nova-2013.1.2-4 openstack-cinder-2013.1.2-2 openstack-quantum-2013.1.2-2 openstack-heat-2013.1.2-3 openstack-ceilometer-2013.1.2-2 RDO-Fedora-18 novnc-0.4-7 openstack-nova-2013.1.2-4 openstack-cinder-2013.1.2-2 openstack-quantum-2013.1.2-2 openstack-heat-2013.1.2-3 openstack-ceilometer-2013.1.2-2 thanks, Pádraig.