Earlier quoted context omitted.
I've had named blow out and it doesn't get restarted, it just stays dead. Rebooting the server is a heavy handed fix. systemd will kick it back into gear if it drops.
Use nsd and/or unbound, they're more robust and faster than bind.
Good to know, hadn't really had a chance to explore those yet but will.
No software is entirely bug-free, so I do like having them relaunch on failure rather than stay dead.