You know that thing were you’re trying to debug a problem and you just know that you’re the culprit, that past-you did something stupid, and you just can’t figure out what?

Welcome to my day.

Anyway, I’m documenting my stupidity so you don’t have to suffer as long as I did.

The background: in order to debug an application that runs on a cluster can be a challenge. The way I tend to do it is to run a server in debug mode in my IDE and connect to that same server using a client. The server is super-simple: