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[Bug 1146000] Re: lazy load 'system_metadata' error in nova-network

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** Changed in: nova
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1146000

Title:
  lazy load 'system_metadata' error in nova-network

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  branch: master
  commit: bcdbe9ba881db8b38525bfc44a182e6b210459cd

  2013-03-05 12:37:29.658 ERROR nova.openstack.common.rpc.amqp [req-5f8a3941-839b-4226-b6e6-709627aaeecd 1458120d63784bb49858437c275dc59e 7dd8607e7d294efc845ccf68f8d282b7] Exception during message handling
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp Traceback (most recent call last):
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/rpc/amqp.py", line 393, in _process_data
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     rval = self.proxy.dispatch(ctxt, version, method, **args)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/rpc/dispatcher.py", line 133, in dispatch
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     return getattr(proxyobj, method)(ctxt, **kwargs)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/network/floating_ips.py", line 116, in allocate_for_instance
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     **kwargs)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/network/manager.py", line 508, in allocate_for_instance
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     requested_networks=requested_networks)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/network/manager.py", line 211, in _allocate_fixed_ips
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     vpn=vpn, address=address)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/network/manager.py", line 1658, in allocate_fixed_ip
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     instance_id)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/network/manager.py", line 380, in _do_trigger_security_group_members_refresh_for_instance
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     group_ids)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/compute/api.py", line 3147, in trigger_members_refresh
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     context, instance['host'], instance)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/compute/rpcapi.py", line 669, in refresh_instance_security_rules
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     instance_p = jsonutils.to_primitive(instance)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/jsonutils.py", line 107, in to_primitive
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     return recursive(dict(value.iteritems()), level=level + 1)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/db/sqlalchemy/models.py", line 88, in iteritems
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     local = dict(self)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/db/sqlalchemy/models.py", line 77, in next
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     return n, getattr(self, n)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/attributes.py", line 168, in __get__
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     return self.impl.get(instance_state(instance),dict_)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/attributes.py", line 453, in get
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     value = self.callable_(state, passive)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp   File "/usr/lib/python2.7/dist-packages/sqlalchemy/orm/strategies.py", line 481, in _load_for_state
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp     (mapperutil.state_str(state), self.key)
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp DetachedInstanceError: Parent instance <Instance at 0x5888190> is not bound to a Session; lazy load operation of attribute 'system_metadata' cannot proceed
  2013-03-05 12:37:29.658 14282 TRACE nova.openstack.common.rpc.amqp

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