First of all, check that all Nova services are in a stable state:
$nova-manage service list Binary Host Zone Status State Updated_At nova-scheduler openstack1 nova enabled : – ) 2012-05-12 22:42:14 nova-compute openstack1 nova enabled : – ) 2012-05-12 22:42:12 nova-network openstack1 nova enabled : – ) 2012-05-12 22:42:14
Secondly, check that all nova processes are running:
$ ps -ea | grep nova 11448 ? 00:02:54 nova-cert 12072 ? 00:02:57 nova-network 12083 ? 00:10:31 nova-compute 12093 ? 00:06:40 nova-api 12117 ? 00:02:26 nova-scheduler 12154 ? 00:00:00 nova-xvpvncprox 55746 ? 00:00:00 nova-objectstor
For further insight into any errors, the log files are very helpful. The following command can be used to see the logs files:
$tail -n 400 /var/log/nova-compute
