Then you shutdown all controllers, you break galera cluster, thus OS env becomes non operational. That is a known HA architecture limitation.
There is also known bugs 1) with RabbitMQ<v3 glitch on cluster member disconnect, and 2) Fuel related only galera HA bug after VIP migration.
Please elaborate which controller(s) you shutdown to reproduce the subject issue: Primary one? All controllers? The one hosting VIP address (management one)?
Then you shutdown all controllers, you break galera cluster, thus OS env becomes non operational. That is a known HA architecture limitation.
There is also known bugs 1) with RabbitMQ<v3 glitch on cluster member disconnect, and 2) Fuel related only galera HA bug after VIP migration.
Please elaborate which controller(s) you shutdown to reproduce the subject issue: Primary one? All controllers? The one hosting VIP address (management one)?
For now I set this bug as incomplete.