Tempest tests failing with the following:
2013-06-20 05:24:04.428 | Remote error: InvalidRequestError Could not refresh instance '' [u'Traceback (most recent call last):\n', u' File "/opt/stack/new/heat/heat/openstack/common/rpc/amqp.py", line 434, in _process_data\n **args)\n', u' File "/opt/stack/new/heat/heat/openstack/common/rpc/dispatcher.py", line 172, in dispatch\n result = getattr(proxyobj, method)(ctxt, **kwargs)\n', u' File "/opt/stack/new/heat/heat/engine/service.py", line 52, in wrapped\n return func(self, ctx, *args, **kwargs)\n', u' File "/opt/stack/new/heat/heat/engine/service.py", line 184, in list_stacks\n return list(format_stack_details(stacks))\n', u' File "/opt/stack/new/heat/heat/engine/service.py", line 181, in format_stack_details\n yield api.format_stack(stack)\n', u' File "/opt/stack/new/heat/heat/engine/api.py", line 73, in format_stack\n STACK_CREATION_TIME: timeutils.isotime(stack.created_time),\n', u' File "/opt/stack/new/heat/heat/engine/timestamp.py", line 41, in __get__\n o.refresh(attrs=[self.attribute])\n', u' File "/opt/stack/new/heat/heat/db/sqlalchemy/models.py", line 79, in refresh\n session.refresh(self, attrs)\n', u' File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 1167, in refresh\n mapperutil.instance_str(instance))\n', u"InvalidRequestError: Could not refresh instance ''\n"].
http://logs.openstack.org/33055/4/check/gate-tempest-devstack-vm-postgres-full/24564/console.html.gz
This seems to be a duplicate of bug 1193043 (which has a little more specific detail and hopefully greater visibility at this point).