nova删不掉实例ERROR: Cannot 'forceDelete' while instance is in vm_state active

nova删不掉实例ERROR: Cannot 'forceDelete' while instance is in vm_state active

nova force-delete xxxxxx      ERROR: Cannot 'forceDelete' while instance is in vm_state active
instance 删不掉
2015-06-25 14:44:41.966 7610 TRACE nova.compute.manager [instance: 167d1c72-8c44-4949-88ea-f4a00daacea2]
2015-06-25 14:44:53.172 7610 AUDIT nova.compute.manager [req-b41914a2-a9b9-4b66-8a6f-80ba0fb1b0a2 Type S, SDIRed ZSJJL8E af7e8f8fc8c34bcea1eb25cd40a247a3] [instance: 167d1c72-8c44-4949-88ea-f4a00daacea2] Terminating instance
2015-06-25 14:44:53.181 7610 ERROR nova.virt.libvirt.driver [-] [instance: 167d1c72-8c44-4949-88ea-f4a00daacea2] During wait destroy, instance disappeared.
2015-06-25 14:44:53.291 7610 INFO nova.virt.libvirt.driver [req-b41914a2-a9b9-4b66-8a6f-80ba0fb1b0a2 Type S, SDIRed ZSJJL8E af7e8f8fc8c34bcea1eb25cd40a247a3] [instance: 167d1c72-8c44-4949-88ea-f4a00daacea2] Deletion of /var/lib/nova/instances/167d1c72-8c44-4949-88ea-f4a00daacea2 complete
2015-06-25 14:45:01.520 7610 ERROR nova.compute.manager [req-b41914a2-a9b9-4b66-8a6f-80ba0fb1b0a2 Type S, SDIRed ZSJJL8E af7e8f8fc8c34bcea1eb25cd40a247a3] [instance: 167d1c72-8c44-4949-88ea-f4a00daacea2] Setting instance vm_state to ERROR

解决办法：
先关闭实例，再用命令nova delete ###，就可以删除了。