Your OpenStack services must now point their MySQL configuration to the highly available, virtual cluster IP address — rather than a MySQL server’s physical IP address as you normally would.
For OpenStack Image, for example, if your MySQL service IP address is
192.168.42.101 as in the configuration explained here, you would use
the following line in your OpenStack Image registry configuration file
(glance-registry.conf):
sql_connection = mysql://glancedbadmin:<password>@192.168.42.101/glance
No other changes are necessary to your OpenStack configuration. If the node currently hosting your database experiences a problem necessitating service failover, your OpenStack services may experience a brief MySQL interruption, as they would in the event of a network hiccup, and then continue to run normally.
