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nova-cert is enabled but state is down. Able to use commands to disable/re-enable but not to bring it up. nova-cert.log file shows: ERROR oslo.messaging._drivers.impl_rabbit [req-7a4155e3-98d6-4d2d-b19b-5b54e469081a - - - - -] [8646fb4f-b0a3-4144-86e2-700f211bb055] AMQP server on 192.168.24.1:5672 is unreachable 2018-12-09 05:07:00.118 21549 ERROR nova.servicegroup.drivers.db DBConnectionError: (pymysql.err.OperationalError) (2003, "Can't connect to MySQL server on '192.168.24.1' ([Errno 111] ECONNREFUSED)") https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html/fast_forward_upgrades/executing_post_upgrade_steps#annotations:f59f8edf-1dcc-4c60-b1d2-8c8fae475570