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<p>Hi All,</p>
<p>We have noticed in our neutron-l3-agent logs that there are a
number of routers that neutron seems to think exist ( but they no
longer exist in the data base ) and it is constantly trying to
delete them. However because they don't appear to exist, so
neutron seems to get stuck in a loop of trying to delete routers
that are no longer there.</p>
<p>We originally noticed that neutron was trying to delete the
"qrouter-xxxx-xxx-xxxx" and that didn't exist. So we added the
router manually with "ip netns add qrouter-xxx-xxx-xxx-xxx" which
then deletes the router however we then get the following error
messages:</p>
<p>2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent [-]
Error while deleting router da7b633a-233b-46d1-ba3d-315b3bee6a61<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent Traceback
(most recent call last):<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/agent.py",
line 359, in _safe_router_removed<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
self._router_removed(router_id)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/agent.py",
line 377, in _router_removed<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
ri.delete(self)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/ha_router.py",
line 380, in delete<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
super(HaRouter, self).delete(agent)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/router_info.py",
line 361, in delete<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
self.process_delete(agent)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/common/utils.py",
line 385, in call<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
self.logger(e)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/oslo_utils/excutils.py",
line 220, in __exit__<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
self.force_reraise()<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/oslo_utils/excutils.py",
line 196, in force_reraise<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
six.reraise(self.type_, self.value, self.tb)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/common/utils.py",
line 382, in call<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
return func(*args, **kwargs)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/router_info.py",
line 972, in process_delete<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
self._process_external_on_delete(agent)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/router_info.py",
line 794, in _process_external_on_delete<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
self._process_external_gateway(ex_gw_port, agent.pd)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/router_info.py",
line 693, in _process_external_gateway<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
self.external_gateway_removed(self.ex_gw_port, interface_name)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/ha_router.py",
line 371, in external_gateway_removed<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
interface_name)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/router_info.py",
line 668, in external_gateway_removed<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
ip_addr['prefixlen']))<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/l3/router_info.py",
line 286, in remove_external_gateway_ip<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
device.delete_addr_and_conntrack_state(ip_cidr)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 290, in delete_addr_and_conntrack_state<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
self.addr.delete(cidr)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 580, in delete<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
'dev', self.name))<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 361, in _as_root<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
use_root_namespace=use_root_namespace)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 94, in _as_root<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
log_fail_as_error=self.log_fail_as_error)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py",
line 103, in _execute<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
log_fail_as_error=log_fail_as_error)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent File
"/openstack/venvs/neutron-13.3.8/lib/python2.7/site-packages/neutron/agent/linux/utils.py",
line 140, in execute<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent raise
RuntimeError(msg)<br>
2017-06-08 16:50:22.340 677 ERROR neutron.agent.l3.agent
RuntimeError: Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot find
device "qg-c4080b5c-c9"</p>
<p>Has anyone come across this before?</p>
<p>We don't seem to have an entry for them anywhere from what we can
see.</p>
<p>Regards,<br>
</p>
<p><br>
</p>
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