[openstack@folsom:~]$ sudo service nova-api restart
[openstack@folsom:~]$ sudo service nova-scheduler restart
[openstack@folsom:~]$ sudo service nova-compute restart
[openstack@folsom:~]$ sudo service nova-cert restart
[openstack@folsom:~]$ sudo service nova-consoleauth restart
[openstack@folsom:~]$ sudo service nova-novncproxy restart