Openstack : 8、报错No handlers could be found for logger "keystoneauth.identity.generic.base" 解决办法

openstack执行nova list报错

No handlers could be found for logger "keystoneauth.identity.generic.base"

ERROR (ConnectFailure): Unable to establish connection to  http://10.20.0.14:5000/v2.0/tokens

参考这篇文章：http://www.cnblogs.com/felixwa/p/5793528.html

应该是keystone没有启动。执行如下命令：

systemctl start openstack-keystone
systemctl start openstack-keystone.service

如果没有生效。

参考这篇文章：https://ask.openstack.org/en/question/91371/unable-to-start-keystone/

Keystone service has been included as apache wsgi in the past releases. If you start keystone service it will fail because ports are already in use by the keystone wsgi processes.

You can check that keystone ports are bind and which process uses it with:

netstat -antupo | egrep '(5000|35357)'

To restart keystone, you can simply restart apache:

systemctl restart httpd

说keystone和apache服务放在一起，因此重启apahce即可,即执行命令

systemctl restart httpd