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博客地址：http://blog.csdn.net/qq_21398167
原博文地址：http://blog.csdn.net/qq_21398167/article/details/46987669
突然有一天使用 nova list 出现错误了
root@openstackcloud1:~# nova list
ERROR:HTTPConnectionPool(host='openstackcloud1',
port=35357):Max retries exceededwith url:/v2.0/tokens(Causedby<class'socket.error'>:[Errno111]Connection
refused)
原因是 nova-api service 没有启动起来
结果启动 还失败了
# service openstack-nova-api restart
Redirecting to /bin/systemctl restart openstack-nova-api.service
Job for openstack-nova-api.service failed. See 'systemctl status openstack-nova-api.service' and 'journalctl -xn' for details.
通过查询错误日志 /var/log/nova/nova-api.log
看到例如以下错误：
2015-07-21 04:11:30.800 6879 ERROR nova.wsgi [-] Could not bind to 0.0.0.0:8775
原因是
openstack-nova-api and openstack-nova-metadata-api both run on the same port so you are getting "Address already in use" error.Try stopping "openstack-nova-metadata-api" service and run "openstack-nova-api".
仅仅需两步
# service openstack-nova-metadata-api stop
# service openstack-nova-api restart
成功了
[root@localhost Desktop]# service openstack-nova-metadata-api stop
Redirecting to /bin/systemctl stop openstack-nova-metadata-api.service
[root@localhost Desktop]# service openstack-nova-api restart
Redirecting to /bin/systemctl restart openstack-nova-api.service