2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 217, in _as_root
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent kwargs.get('use_root_namespace', False))
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 70, in _as_root
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent namespace)
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent File "/opt/stack/neutron/neutron/agent/linux/ip_lib.py", line 81, in _execute
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent root_helper=root_helper)
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 75, in execute
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent raise RuntimeError(m)
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent RuntimeError:
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent Command: ['sudo', '/usr/local/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns', 'exec', 'qdhcp-e1eaed6e-ef91-4741-acb2-62daba3ffede', 'ip', 'route', 'replace', 'default', 'via', '10.2.0.1', 'dev', 'tapb1e4235c-4e']
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent Exit code: 2
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent Stdout: ''
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent Stderr: 'RTNETLINK answers: Network is unreachable\n'
2014-04-03 20:37:02.020 TRACE neutron.agent.dhcp_agent
The dhcp-agent continues to loop endlessly resyncing due to this. If i bring the interface up in the namespace the next time looped through the error goes away.