Devstack neutron intermittently fails on neutron-debug probe-create --device-owner compute

[Ramy Asselin]

I'm seeing devstack neutron fail to stack on our 3rd party ci system. This is an intermittent failure.

2015-08-17 15:33:14.786 | + setup_neutron_debug
2015-08-17 15:33:14.786 | + [[ True == \T\r\u\e ]]
2015-08-17 15:33:14.787 | ++ _get_net_id public
2015-08-17 15:33:14.787 | ++ neutron --os-tenant-name admin --os-username admin --os-password secretadmin net-list
2015-08-17 15:33:14.788 | ++ grep public
2015-08-17 15:33:14.788 | ++ awk '{print $2}'
2015-08-17 15:33:16.062 | + public_net_id=3e00553c-83df-4ed0-bf35-a07cd64be710
2015-08-17 15:33:16.062 | + neutron-debug --os-tenant-name admin --os-username admin --os-password secretadmin probe-create --device-owner compute 3e00553c-83df-4ed0-bf35-a07cd64be710
2015-08-17 15:33:17.219 | Option "verbose" from group "DEFAULT" is deprecated for removal. Its value may be silently ignored in the future.
2015-08-17 15:33:17.838 | 2015-08-17 15:33:17.837 8559 WARNING oslo_config.cfg [-] Option "use_namespaces" from group "DEFAULT" is deprecated for removal. Its value may be silently ignored in the future.
2015-08-17 15:33:18.472 | ++ _get_net_id private
2015-08-17 15:33:18.472 | ++ neutron --os-tenant-name admin --os-username admin --os-password secretadmin net-list
2015-08-17 15:33:18.473 | ++ grep private
2015-08-17 15:33:18.473 | ++ awk '{print $2}'
2015-08-17 15:33:20.081 | + private_net_id=faa3a43c-fc68-4da6-9337-f354ce184482
2015-08-17 15:33:20.081 | + neutron-debug --os-tenant-name admin --os-username admin --os-password secretadmin probe-create --device-owner compute faa3a43c-fc68-4da6-9337-f354ce184482
2015-08-17 15:33:21.225 | Option "verbose" from group "DEFAULT" is deprecated for removal. Its value may be silently ignored in the future.
2015-08-17 15:33:21.822 | 2015-08-17 15:33:21.821 8699 WARNING oslo_config.cfg [-] Option "use_namespaces" from group "DEFAULT" is deprecated for removal. Its value may be silently ignored in the future.
2015-08-17 15:33:22.381 | 2015-08-17 15:33:22.380 8699 ERROR neutron.agent.linux.utils [-]
2015-08-17 15:33:22.381 | Command: ['ip', 'netns', 'exec', u'qprobe-b1c0edee-1e71-479b-94ed-fe96ad8b2041', 'ip', '-6', 'addr', 'add', 'fd2d:8d14:3bb8:0:f816:3eff:feca:6779/64', 'scope', 'global', 'dev', u'tapb1c0edee-1e']
2015-08-17 15:33:22.381 | Exit code: 2
2015-08-17 15:33:22.381 | Stdin:
2015-08-17 15:33:22.382 | Stdout:
2015-08-17 15:33:22.382 | Stderr: RTNETLINK answers: File exists
2015-08-17 15:33:22.382 |
2015-08-17 15:33:22.382 | 2015-08-17 15:33:22.380 8699 ERROR neutronclient.shell [-]
2015-08-17 15:33:22.383 | Command: ['ip', 'netns', 'exec', u'qprobe-b1c0edee-1e71-479b-94ed-fe96ad8b2041', 'ip', '-6', 'addr', 'add', 'fd2d:8d14:3bb8:0:f816:3eff:feca:6779/64', 'scope', 'global', 'dev', u'tapb1c0edee-1e']
2015-08-17 15:33:22.383 | Exit code: 2
2015-08-17 15:33:22.383 | Stdin:
2015-08-17 15:33:22.383 | Stdout:
2015-08-17 15:33:22.383 | Stderr: RTNETLINK answers: File exists
2015-08-17 15:33:22.383 |

Full logs and configuration available here for 30 days:
http://15.126.198.151/59/213659/1/check/3par-fc-driver-master-client-pip-eos14-dsvm/cc7f606/logs/devstacklog.txt.gz#_2015-08-17_15_33_20_081

I will add additional log entries to this bug as I see them.