Hi Junien,
Thanks for reporting this and making Ubuntu better. I've added the
upstream neutron project to this bug as this doesn't appear to be
limited to the Ubuntu package. Does the charm also need a fix for this?
If so we should add the charm project to this bug.
Thanks,
Corey
** Also affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1799737
Title:
l3 agent external_network_bridge broken with ovs
Status in neutron:
New
Status in neutron package in Ubuntu:
New
Bug description:
Hi,
I'm running queens on xenial. The following commit introduced a
regression :
https://git.openstack.org/cgit/openstack/neutron/commit/?id=2b1d413ee90dfe2e9ae41c35ab37253df53fc6cd
(fixing bug 1767422)
The following call is wrong (in router_info.py) :
self.driver.remove_vlan_tag(self.agent_conf.external_network_bridge,
interface_name)
In this call, interface_name is something like "qg-abcdefg-12", but
remove_vlan_tag() expects a tap interface. This results in the
following log :
2018-10-24 00:28:40.880 23623 DEBUG ovsdbapp.backend.ovs_idl.transaction [-]
Running txn command(idx=0): DbClearCommand(column=tag, table=Port,
record=qg-0410dbf1-51) do_commit
/usr/lib/python2.7/dist-packages/ovsdbapp/backend/ovs_idl/transaction.py:84
2018-10-24 00:28:40.881 23623 DEBUG ovsdbapp.backend.ovs_idl.transaction [-]
Transaction aborted do_commit
/usr/lib/python2.7/dist-packages/ovsdbapp/backend/ovs_idl/transaction.py:112
Sadly, the cause of the "Transaction aborted" is hidden (in
https://github.com/openstack/ovsdbapp/blob/master/ovsdbapp/backend/ovs_idl/transaction.py#L87).
If I print the exception, I get the following :
2018-10-24 00:28:40.881 23623 DEBUG
ovsdbapp.backend.ovs_idl.transaction [-] EXCEPTION Cannot find Port
with name=qg-0410dbf1-51 do_commit /usr/lib/python2.7/dist-
packages/ovsdbapp/backend/ovs_idl/transaction.py:88
Checking the ovs database reveals that Port "names" are the tap interfaces,
not the qg- interfaces. The ports staying the VLAN 4095 will basically make the
network unusable. Using the following call fixes my problem :
self.driver.remove_vlan_tag(self.agent_conf.external_network_bridge,
self.driver._get_tap_name(interface_name,prefix=EXTERNAL_DEV_PREFIX))
It would be nice to print the exception caught in
https://github.com/openstack/ovsdbapp/blob/master/ovsdbapp/backend/ovs_idl/transaction.py#L87
by the way...
Thanks !
For reference :
$ dpkg -l|grep neutron
ii neutron-common 2:12.0.3-0ubuntu1~cloud0
all Neutron is a virtual network service for Openstack - common
ii neutron-dhcp-agent 2:12.0.3-0ubuntu1~cloud0
all Neutron is a virtual network service for Openstack - DHCP agent
ii neutron-l3-agent 2:12.0.3-0ubuntu1~cloud0
all Neutron is a virtual network service for Openstack - l3 agent
ii neutron-lbaas-common 2:12.0.0-0ubuntu1~cloud0
all Neutron is a virtual network service for Openstack - common
ii neutron-lbaasv2-agent 2:12.0.0-0ubuntu1~cloud0
all Neutron is a virtual network service for Openstack - LBaaSv2
agent
ii neutron-metadata-agent 2:12.0.3-0ubuntu1~cloud0
all Neutron is a virtual network service for Openstack - metadata
agent
ii neutron-metering-agent 2:12.0.3-0ubuntu1~cloud0
all Neutron is a virtual network service for Openstack - metering
agent
ii neutron-openvswitch-agent 2:12.0.3-0ubuntu1~cloud0
all Neutron is a virtual network service for Openstack - Open
vSwitch plugin agent
ii python-neutron 2:12.0.3-0ubuntu1~cloud0
all Neutron is a virtual network service for Openstack - Python
library
ii python-neutron-fwaas 1:12.0.0-0ubuntu1~cloud0
all Firewall-as-a-Service driver for OpenStack Neutron
ii python-neutron-lbaas 2:12.0.0-0ubuntu1~cloud0
all Loadbalancer-as-a-Service driver for OpenStack Neutron
ii python-neutron-lib 1.13.0-0ubuntu1~cloud0
all Neutron shared routines and utilities - Python 2.7
ii python-neutronclient 1:6.7.0-0ubuntu1~cloud0
all client API library for Neutron - Python 2.7
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