2016-02-22 11:40:04.067 ERROR neutron.agent.linux.utils [-] Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot open network namespace "qrouter-b1758bdd-3905-4c6b-a81f-2f491b80189b": No such file or directory

2016-02-22 11:40:04.067 ERROR neutron.agent.l3.router_info [-] Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot open network namespace "qrouter-b1758bdd-3905-4c6b-a81f-2f491b80189b": No such file or directory

2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info Traceback (most recent call last):
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info   File "/opt/openstack/neutron/neutron/common/utils.py", line 368, in call
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info     return func(*args, **kwargs)
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info   File "/opt/openstack/neutron/neutron/agent/l3/router_info.py", line 928, in process_delete
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info     self._process_internal_ports(agent.pd)
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info   File "/opt/openstack/neutron/neutron/agent/l3/router_info.py", line 530, in _process_internal_ports
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info     existing_devices = self._get_existing_devices()
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info   File "/opt/openstack/neutron/neutron/agent/l3/router_info.py", line 405, in _get_existing_devices
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info     ip_devs = ip_wrapper.get_devices(exclude_loopback=True)
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info   File "/opt/openstack/neutron/neutron/agent/linux/ip_lib.py", line 131, in get_devices
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info     log_fail_as_error=self.log_fail_as_error
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info   File "/opt/openstack/neutron/neutron/agent/linux/utils.py", line 140, in execute
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info     raise RuntimeError(msg)
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info RuntimeError: Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot open network namespace "qrouter-b1758bdd-3905-4c6b-a81f-2f491b80189b": No such file or directory
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info
2016-02-22 11:40:04.067 TRACE neutron.agent.l3.router_info
2016-02-22 11:40:04.068 ERROR neutron.agent.l3.agent [-] Error while deleting router b1758bdd-3905-4c6b-a81f-2f491b80189b
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent Traceback (most recent call last):
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/agent/l3/agent.py", line 355, in _safe_router_removed
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     self._router_removed(router_id)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/agent/l3/agent.py", line 373, in _router_removed
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     ri.delete(self)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/agent/l3/ha_router.py", line 379, in delete
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     super(HaRouter, self).delete(agent)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/agent/l3/router_info.py", line 340, in delete
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     self.process_delete(agent)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/common/utils.py", line 371, in call
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     self.logger(e)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 204, in __exit__
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     six.reraise(self.type_, self.value, self.tb)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/common/utils.py", line 368, in call
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     return func(*args, **kwargs)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/agent/l3/router_info.py", line 928, in process_delete
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     self._process_internal_ports(agent.pd)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/agent/l3/router_info.py", line 530, in _process_internal_ports
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     existing_devices = self._get_existing_devices()
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/agent/l3/router_info.py", line 405, in _get_existing_devices
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     ip_devs = ip_wrapper.get_devices(exclude_loopback=True)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/agent/linux/ip_lib.py", line 131, in get_devices
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     log_fail_as_error=self.log_fail_as_error
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent   File "/opt/openstack/neutron/neutron/agent/linux/utils.py", line 140, in execute
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent     raise RuntimeError(msg)
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent RuntimeError: Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot open network namespace "qrouter-b1758bdd-3905-4c6b-a81f-2f491b80189b": No such file or directory
2016-02-22 11:40:04.068 TRACE neutron.agent.l3.agent