Comment 16 for bug 1632540

The error logs in branch master:

2017-02-16 20:45:18.240 DEBUG neutron.agent.linux.utils [-] Running command (rootwrap daemon): ['ip', 'netns', 'exec', 'snat-eaf029d4-424c-45fc-802c-57d16dde3f0e', 'keepalived', '-P', '-f', '/opt/stack/data/neutron/ha_confs/eaf029d4-424c-45fc-802c-57d16dde3f0e/keepalive
d.conf', '-p', '/opt/stack/data/neutron/ha_confs/eaf029d4-424c-45fc-802c-57d16dde3f0e.pid', '-r', '/opt/stack/data/neutron/ha_confs/eaf029d4-424c-45fc-802c-57d16dde3f0e.pid-vrrp'] from (pid=6499) execute_rootwrap_daemon /opt/stack/neutron/neutron/agent/linux/utils.py:11
3
2017-02-16 20:45:18.252 ERROR neutron.agent.linux.utils [-] Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot open network namespace "snat-eaf029d4-424c-45fc-802c-57d16dde3f0e": No such file or directory

2017-02-16 20:45:18.253 ERROR neutron.agent.l3.agent [-] Failed to process compatible router: eaf029d4-424c-45fc-802c-57d16dde3f0e
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent Traceback (most recent call last):
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/l3/agent.py", line 503, in _process_router_update
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent self._process_router_if_compatible(router)
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/l3/agent.py", line 440, in _process_router_if_compatible
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent self._process_updated_router(router)
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/l3/agent.py", line 455, in _process_updated_router
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent ri.process()
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/l3/dvr_local_router.py", line 646, in process
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent super(DvrLocalRouter, self).process()
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/l3/dvr_router_base.py", line 30, in process
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent super(DvrRouterBase, self).process()
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/l3/ha_router.py", line 418, in process
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent self.enable_keepalived()
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/l3/ha_router.py", line 147, in enable_keepalived
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent self.keepalived_manager.spawn()
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/linux/keepalived.py", line 426, in spawn
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent keepalived_pm.enable(reload_cfg=True)
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/linux/external_process.py", line 94, in enable
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent run_as_root=self.run_as_root)
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 896, in execute
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent log_fail_as_error=log_fail_as_error, **kwargs)
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 152, in execute
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent raise ProcessExecutionError(msg, returncode=returncode)
2017-02-16 20:45:18.253 TRACE neutron.agent.l3.agent ProcessExecutionError: Exit code: 1; Stdin: ; Stdout: ; Stderr: Cannot open network namespace "snat-eaf029d4-424c-45fc-802c-57d16dde3f0e": No such file or directory