Heya, I just upgraded my Fedora 20 Havana setup to IceHouse, and, restarting openstack-neutron-agent fails with the below: ================================= $ systemctl start neutron-openvswitch-agent $ systemctl status neutron-openvswitch-agent [. . .] Jan 07 02:45:15 node2-compute neutron-openvswitch-agent[3471]: from neutron.agent.linux import polling Jan 07 02:45:15 node2-compute neutron-openvswitch-agent[3471]: File "/usr/lib/python2.7/site-packages/neutron/agent/linux/polling.py", line 2...odule> Jan 07 02:45:15 node2-compute neutron-openvswitch-agent[3471]: from neutron.agent.linux import ovsdb_monitor Jan 07 02:45:15 node2-compute neutron-openvswitch-agent[3471]: File "/usr/lib/python2.7/site-packages/neutron/agent/linux/ovsdb_monitor.py", ...odule> Jan 07 02:45:15 node2-compute neutron-openvswitch-agent[3471]: from neutron.agent.linux import async_process Jan 07 02:45:15 node2-compute neutron-openvswitch-agent[3471]: File "/usr/lib/python2.7/site-packages/neutron/agent/linux/async_process.py", ...odule> Jan 07 02:45:15 node2-compute neutron-openvswitch-agent[3471]: import psutil Jan 07 02:45:15 node2-compute neutron-openvswitch-agent[3471]: ImportError: No module named psutil Jan 07 02:45:15 node2-compute systemd[1]: neutron-openvswitch-agent.service: main process exited, code=exited, status=1/FAILURE Jan 07 02:45:15 node2-compute systemd[1]: Unit neutron-openvswitch-agent.service entered failed state. Hint: Some lines were ellipsized, use -l to show in full. [root@node2-compute ~]# systemctl status neutron-openvswitch-agent -l neutron-openvswitch-agent.service - OpenStack Quantum Open vSwitch Agent Loaded: loaded (/usr/lib/systemd/system/neutron-openvswitch-agent.service; enabled) Active: failed (Result: exit-code) since Mon 2012-12-10 02:45:15 EST; 20s ago Process: 3471 ExecStart=/usr/bin/neutron-openvswitch-agent --config-file /usr/share/neutron/neutron-dist.conf --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini --log-file /var/log/neutron/openvswitch-agent.log (code=exited, status=1/FAILURE) Main PID: 3471 (code=exited, status=1/FAILURE) ================================= Workaround for now - explicitly install python-psutil: $ yum install python-psutil.x86_64 $ systemctl start neutron-openvswitch-agent $ systemctl status neutron-openvswitch-agent -l neutron-openvswitch-agent.service - OpenStack Quantum Open vSwitch Agent Loaded: loaded (/usr/lib/systemd/system/neutron-openvswitch-agent.service; enabled) Active: active (running) since Mon 2012-12-10 18:23:13 EST; 1 years 0 months ago Main PID: 3515 (neutron-openvsw) CGroup: /system.slice/neutron-openvswitch-agent.service └─3515 /usr/bin/python /usr/bin/neutron-openvswitch-agent --config-file /usr/share/neutron/neutron-dist.conf --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini --log-file /var/log/neutron/openvswitch-agent.log [. . .] Not sure if others are encountering this too? -- /kashyap