OpenStack Compute (nova)

UnboundLocalError while deleting instance

Bug #1227337 reported by Armando Migliaccio on 2013-09-18

This bug report is a duplicate of: Bug #1246258: UnboundLocalError: local variable 'network_name' referenced before assignment. Edit Remove

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	OpenStack Compute (nova)	Confirmed	Medium	Unassigned

Bug Description

I get this stacktrace when I tried to delete an instance:

2013-09-18 12:37:38.033 ERROR nova.openstack.common.rpc.amqp [req-ab356e4e-959a-4419-b188-bbd8dca98f48 admin admin] Exception during message handling
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp Traceback (most recent call last):
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/openstack/common/rpc/amqp.py", line 461, in _process_data
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp **args)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/openstack/common/rpc/dispatcher.py", line 172, in dispatch
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp result = getattr(proxyobj, method)(ctxt, **kwargs)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 354, in decorated_function
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp return function(self, context, *args, **kwargs)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/exception.py", line 89, in wrapped
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp payload)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/exception.py", line 73, in wrapped
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp return f(self, context, *args, **kw)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 244, in decorated_function
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp pass
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 230, in decorated_function
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp return function(self, context, *args, **kwargs)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 295, in decorated_function
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp function(self, context, *args, **kwargs)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 272, in decorated_function
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp e, sys.exc_info())
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 259, in decorated_function
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp return function(self, context, *args, **kwargs)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 1791, in terminate_instance
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp do_terminate_instance(instance, bdms)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/openstack/common/lockutils.py", line 246, in inner
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp return f(*args, **kwargs)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 1783, in do_terminate_instance
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp reservations=reservations)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/hooks.py", line 105, in inner
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp rv = f(*args, **kwargs)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 1756, in _delete_instance
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp user_id=user_id)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 1728, in _delete_instance
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp self._shutdown_instance(context, db_inst, bdms)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 1638, in _shutdown_instance
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp network_info = self._get_instance_nw_info(context, instance)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/compute/manager.py", line 877, in _get_instance_nw_info
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp instance)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/network/neutronv2/api.py", line 455, in get_instance_nw_info
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp result = self._get_instance_nw_info(context, instance, networks)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/network/neutronv2/api.py", line 463, in _get_instance_nw_info
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp nw_info = self._build_network_info_model(context, instance, networks)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/network/neutronv2/api.py", line 1009, in _build_network_info_model
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp subnets)
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp File "/opt/stack/nova/nova/network/neutronv2/api.py", line 962, in _nw_info_build_network
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp label=network_name,
2013-09-18 12:37:38.033 TRACE nova.openstack.common.rpc.amqp UnboundLocalError: local variable 'network_name' referenced before assignment

This happens on trunk, steps to repro are:

Okay, this is somewhat a corner case, but here goes:

- Tenant create network NET_FOO
- Admin create port on NET_FOO, PORT_FOO
- Admin boots a VM with PORT_FOO
... (the VM boots up fine)
- Admin delete VM

- The VM does not get deleted: the underlying error is captured in the stacktrace above.

See original description

Tags:

Armando Migliaccio (armando-migliaccio) on 2013-09-18

Changed in nova:
assignee:	nobody → Armando Migliaccio (armando-migliaccio)

Armando Migliaccio (armando-migliaccio) on 2013-09-18

Changed in nova:
importance:	Undecided → Low

Russell Bryant (russellb) on 2013-09-19

Changed in nova:
status:	New → Confirmed
importance:	Low → Medium
tags:	added: network

Revision history for this message

OpenStack Infra (hudson-openstack) wrote on 2013-09-23: Fix proposed to nova (master)

Fix proposed to branch: master
Review: https://review.openstack.org/47890

Changed in nova:
status:	Confirmed → In Progress

Revision history for this message

OpenStack Infra (hudson-openstack) wrote on 2013-09-25:

Fix proposed to branch: master
Review: https://review.openstack.org/48362

Changed in nova:
assignee:	Armando Migliaccio (armando-migliaccio) → Vladik Romanovsky (vladik-romanovsky)

Revision history for this message

Armando Migliaccio (armando-migliaccio) wrote on 2013-09-26:

Dunno what happened there.

Changed in nova:
assignee:	Vladik Romanovsky (vladik-romanovsky) → Armando Migliaccio (armando-migliaccio)
description:	updated

Armando Migliaccio (armando-migliaccio) on 2013-10-28

Changed in nova:
assignee:	Armando Migliaccio (armando-migliaccio) → nobody
status:	In Progress → Confirmed

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