Mahara: Site unavailable

Mahara could not connect to the application database.

* If you are using Mahara, please wait a minute and try again
* If you are the administrator, please check your database settings and make sure your database is available

The error received was:
mysqli error: [2002: php_network_getaddresses: getaddrinfo failed: Name or service not known] in CONNECT(sllv-dbwfpr01, 'devartsdbuser', '****', devarts)