** Summary changed:
- DVR qrouter created without OVS qr device
+ Cannot find device "qr-" error message found in logtrace with DVR routers
while trying to update arp entry
** Changed in: neutron
Status: Expired => Confirmed
** Changed in: neutron
Assignee: (unassigned) => Swaminathan Vasudevan (swaminathan-vasudevan)
** Tags added: l3-dvr-backlog
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https://bugs.launchpad.net/bugs/1419175
Title:
Cannot find device "qr-" error message found in logtrace with DVR
routers while trying to update arp entry
Status in neutron:
In Progress
Bug description:
We have running stable/juno with DVR enabled.
During tests, we created router, gateway and instance.
There is one qrouter on one compute node was created with
RuntimeError:
Command: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf',
'ip', 'netns', 'exec', 'qrouter-086cf9e6-4c43-4b65-b623-fbd5d593f687', 'ip',
'-4', 'neigh', 'replace', '10.100.100.13', 'lladdr', 'fa:16:3e:84:fe:e4',
'nud', 'permanent', 'dev', 'qr-00d7d90b-01']
Exit code: 1
Stdout: ''
Stderr: 'Cannot find device "qr-00d7d90b-01"\n'
2015-02-05 20:48:11.834 27031 ERROR neutron.agent.l3_agent
[req-2c71f61b-c036-4d90-bcfd-75ffdd5340ff None] DVR: Failed updating arp entry
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent Traceback (most
recent call last):
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent File
"/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/l3_agent.py",
line 1719, in _update_arp_entry
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent
device.neigh.add(net.version, ip, mac)
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent File
"/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 515, in add
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent
options=[ip_version])
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent File
"/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 247, in _as_root
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent
kwargs.get('use_root_namespace', False))
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent File
"/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 79, in _as_root
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent
log_fail_as_error=self.log_fail_as_error)
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent File
"/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 91, in _execute
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent
log_fail_as_error=log_fail_as_error)
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent File
"/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutron/agent/linux/utils.py",
line 82, in execute
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent raise
RuntimeError(m)
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent RuntimeError:
As the result, all future router update failed as well. When the router was
removed, the qrouter namespace was left on the compute node as well because of
error:
2015-02-05 20:48:11.834 27031 TRACE neutron.agent.l3_agent Stderr: 'Cannot
find device "qr-00d7d90b-01"\n'
Logs also can be read at: http://paste.openstack.org/show/168348/
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