Repeated DNS timeouts with an unresponsive server

I have a server configured with 2 nameservers in {{resolv.conf}, and only the first one is responsive. I'm getting DNS timeouts on every new request while it fails over from the broken one to the good one.

It is also really hard to debug this because none of the debug logs explicitly tell you what is going on with each server.

First, this behaviour seems pretty suboptimal. Second, we need better observability (even improved debugging) that would help an operator figure this out.