Hi,
In that case, the easiest thing to do is:
wait for the master to get back
or if it won't come back, to elect a slave as the new master (one CLI command to run and you are done)
It's very straightforward. It shouldn't be a dreaded scenario, because as soon as you lose management, you know it and it doesn't impact the rest of your VMs. Even without HA, it's a pretty easy situation to solve.
Note it shouldn't happen that often, as long as you have a documented procedure, it should be enough to deal with it.
