Comment 17 for bug 1632540

Hello,
we are facing the same bug today in production with Mitaka.

We dont have DVR and we dont have HA.

We get the disk filled up by the log file, with lines like:

2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager [-] Failure applying iptables rules
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager Traceback (most recent call last):
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/iptables_manager.py", line 457, in defer_apply
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager self.defer_apply_off()
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/iptables_manager.py", line 468, in defer_apply_off
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager self._apply()
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/iptables_manager.py", line 482, in _apply
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager return self._apply_synchronized()
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/iptables_manager.py", line 508, in _apply_synchronized
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager save_output = self.execute(args, run_as_root=True)
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py", line 140, in execute
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager raise RuntimeError(msg)
2017-03-26 06:44:42.561 20419 ERROR neutron.agent.linux.iptables_manager RuntimeError: Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot open network namespace "qrouter-112b3e2f-ab31-4aa0-9fc4-1e7cc5aa1563": No such file or directory