Missing InstanceInfoCache entry prevents delete

[Mike Durnosvistov]

If you're trying to delete an instance which is out-of-sync such that it's missing a InstanceInfoCache entry, you'll will receive a traceback: http://paste.openstack.org/show/60685/

Delete in this case should be allowed so that you can cleanup these 'broken' instances.

The solution is to catch the InstanceInfoCacheNotFound exception (like we do with other NotFound exceptions around this code), and continue on.

[Roman Podoliaka (rpodolyaka)]

Upstream bug: https://bugs.launchpad.net/nova/+bug/1266919

[OSCI Robot (oscirobot)]

Package nova has been built from changeset: http://gerrit.mirantis.com/28014
RPM Repository URL: http://osci-obs.vm.mirantis.net:82/centos-fuel-4.1.1-stable-28014/centos

[OSCI Robot (oscirobot)]

Package nova has been built from changeset: http://gerrit.mirantis.com/28014
DEB Repository URL: http://osci-obs.vm.mirantis.net:82/ubuntu-fuel-4.1.1-stable-28014/ubuntu