OpenStack Compute (nova)

API returning Error after running a number of builds

Bug #760342 reported by Antony Messerli on 2011-04-13

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	OpenStack Compute (nova)	Fix Released	Undecided	Josh Kearney	OpenStack Compute (nova) 2011.3 "diablo"

Bug Description

Launched 50 builds into nova api and can no longer list via novaclient, running rev 986, get the following error

(nova.api.openstack): TRACE: Traceback (most recent call last):
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/nova/api/openstack/__init__.py", line 59, in __call__
(nova.api.openstack): TRACE: return req.get_response(self.application)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 919, in get_response
(nova.api.openstack): TRACE: application, catch_exc_info=False)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/webob/request.py", line 887, in call_application
(nova.api.openstack): TRACE: app_iter = application(self.environ, start_response)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack): TRACE: return resp(environ, start_response)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack): TRACE: return resp(environ, start_response)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack): TRACE: return resp(environ, start_response)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/routes/middleware.py", line 131, in __call__
(nova.api.openstack): TRACE: response = self.app(environ, start_response)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 159, in __call__
(nova.api.openstack): TRACE: return resp(environ, start_response)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 147, in __call__
(nova.api.openstack): TRACE: resp = self.call_func(req, *args, **self.kwargs)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/webob/dec.py", line 208, in call_func
(nova.api.openstack): TRACE: return self.func(req, *args, **kwargs)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/nova/wsgi.py", line 354, in __call__
(nova.api.openstack): TRACE: result = method(**arg_dict)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/nova/api/openstack/servers.py", line 79, in detail
(nova.api.openstack): TRACE: return self._items(req, is_detail=True)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/nova/api/openstack/servers.py", line 90, in _items
(nova.api.openstack): TRACE: for inst in limited_list]
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/nova/api/openstack/views/servers.py", line 45, in build
(nova.api.openstack): TRACE: server = self._build_detail(inst)
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/nova/api/openstack/views/servers.py", line 84, in _build_detail
(nova.api.openstack): TRACE: for item in inst.get('metadata', []):
(nova.api.openstack): TRACE: File "/usr/lib/pymodules/python2.6/nova/db/sqlalchemy/models.py", line 77, in get
(nova.api.openstack): TRACE: return getattr(self, key, default)
(nova.api.openstack): TRACE: File "/usr/lib/python2.6/dist-packages/sqlalchemy/orm/attributes.py", line 163, in __get__
(nova.api.openstack): TRACE: instance_dict(instance))
(nova.api.openstack): TRACE: File "/usr/lib/python2.6/dist-packages/sqlalchemy/orm/attributes.py", line 382, in get
(nova.api.openstack): TRACE: value = callable_(passive=passive)
(nova.api.openstack): TRACE: File "/usr/lib/python2.6/dist-packages/sqlalchemy/orm/strategies.py", line 578, in __call__
(nova.api.openstack): TRACE: (mapperutil.state_str(state), self.key)
(nova.api.openstack): TRACE: DetachedInstanceError: Parent instance <Instance at 0x3720550> is not bound to a Session; lazy load operation of attribute 'metadata' cannot proceed
(nova.api.openstack): TRACE: