Comment 1 for bug 2006759

Triaging to high; the charm action ought to do what it says it should do, even if that requires the action to perform additional checks beforehand. The problem is that the action is being run on the unit that isn't being removed, which means that it's sort of at the mercy of what mysql-shell is capable of w.r.t. other instances of mysql running on the other units. i.e. if the other unit's mysql isn't running and the mysql-shell command fails, then there's not a lot we can do (I suspect?)

However, perhaps we could be better at documenting what to do under which scenarios and ensure that we provide actions to resolve those situations.