Public bug reported:
With neutron-server if you enable the type_drivers = vlan and set a
mapping in [ml2_type_vlan] then install the neutron database, the
service will start and map successfully.
However if you change the mapping after and restart the service you will
receive error:
2018-01-15 11:50:36.875 9764 ERROR neutron File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/type_vlan.py",
line 133, in _sync_vlan_allocations
2018-01-15 11:50:36.875 9764 ERROR neutron ctx.session.delete(alloc)
2018-01-15 11:50:36.875 9764 ERROR neutron File
"/usr/lib64/python2.7/site-packages/sqlalchemy/orm/session.py", line 1744, in
delete
2018-01-15 11:50:36.875 9764 ERROR neutron raise
exc.UnmappedInstanceError(instance)
2018-01-15 11:50:36.875 9764 ERROR neutron UnmappedInstanceError: Class
'neutron.objects.plugins.ml2.vlanallocation.VlanAllocation' is not mapped
2018-01-15 11:50:36.875 9764 ERROR neutron
plugin.ini:
[ml2]
type_drivers = vlan
tenant_network_types = vlan
mechanism_drivers = openvswitch
[ml2_type_vlan]
network_vlan_ranges = physnet0:2:4000
sync DB:
su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf
--config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head" neutron
Start neutron-server, Success!
Now change plugin.ini to the following:
[ml2_type_vlan]
network_vlan_ranges = physnet1:2:4000
Restart neutron-server. Failure!
Versions:
openstack-neutron-11.0.2-3.el7.noarch
openstack-neutron-ml2-11.0.2-3.el7.noarch
openstack-neutron-common-11.0.2-3.el7.noarch
openstack-neutron-openvswitch-11.0.2-3.el7.noarch
openstack-neutron-linuxbridge-11.0.2-3.el7.noarch
python-neutron-11.0.2-3.el7.noarch
python-neutron-lib-1.9.1-1.el7.noarch
python2-neutronclient-6.5.0-1.el7.noarch
pip
neutron==11.0.2
neutron-lib==1.9.1
python-neutronclient==6.5.0
CentOS 7 @ 3.10.0-693.11.6.el7.x86_64
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1743425
Title:
Changes to VLAN mapping results in "is not mapped" error
Status in neutron:
New
Bug description:
With neutron-server if you enable the type_drivers = vlan and set a
mapping in [ml2_type_vlan] then install the neutron database, the
service will start and map successfully.
However if you change the mapping after and restart the service you
will receive error:
2018-01-15 11:50:36.875 9764 ERROR neutron File
"/usr/lib/python2.7/site-packages/neutron/plugins/ml2/drivers/type_vlan.py",
line 133, in _sync_vlan_allocations
2018-01-15 11:50:36.875 9764 ERROR neutron ctx.session.delete(alloc)
2018-01-15 11:50:36.875 9764 ERROR neutron File
"/usr/lib64/python2.7/site-packages/sqlalchemy/orm/session.py", line 1744, in
delete
2018-01-15 11:50:36.875 9764 ERROR neutron raise
exc.UnmappedInstanceError(instance)
2018-01-15 11:50:36.875 9764 ERROR neutron UnmappedInstanceError: Class
'neutron.objects.plugins.ml2.vlanallocation.VlanAllocation' is not mapped
2018-01-15 11:50:36.875 9764 ERROR neutron
plugin.ini:
[ml2]
type_drivers = vlan
tenant_network_types = vlan
mechanism_drivers = openvswitch
[ml2_type_vlan]
network_vlan_ranges = physnet0:2:4000
sync DB:
su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf
--config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head" neutron
Start neutron-server, Success!
Now change plugin.ini to the following:
[ml2_type_vlan]
network_vlan_ranges = physnet1:2:4000
Restart neutron-server. Failure!
Versions:
openstack-neutron-11.0.2-3.el7.noarch
openstack-neutron-ml2-11.0.2-3.el7.noarch
openstack-neutron-common-11.0.2-3.el7.noarch
openstack-neutron-openvswitch-11.0.2-3.el7.noarch
openstack-neutron-linuxbridge-11.0.2-3.el7.noarch
python-neutron-11.0.2-3.el7.noarch
python-neutron-lib-1.9.1-1.el7.noarch
python2-neutronclient-6.5.0-1.el7.noarch
pip
neutron==11.0.2
neutron-lib==1.9.1
python-neutronclient==6.5.0
CentOS 7 @ 3.10.0-693.11.6.el7.x86_64
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