Fortunately, execution tracing helped us pinpoint the problem.
Leak detection algorithm
This goroutineleak profile uses the garbage collector’s marking phase to find goroutines that are permanently blocked (leaked). The approach is explained in detail in the proposal and the paper by Saioc et al. — check it out if you’re interested.
| Date | Name | Store | Price per 100g | Total Weight | Total Price | Notes |
|---|---|---|---|---|---|---|
| 2026-01-18 | (냉동) 하림 IFF 닭안심 | 롯데마트 제타플렉스 서울역점 | 989 원 | 900g | 8,900 원 |
My highights
Engineers optimize for code quality. Managers optimize for human potential. These are fundamentally different skill sets.
Teams don’t scale through individual brilliance. They scale through collective momentum.
The engineers who actually multiplied output never looked like rockstars. They wrote boring, obvious code that anyone could maintain. They approved pull requests that were good enough, not perfect. They spent time pairing with people who were stuck instead of cranking out features alone.
We don’t. Because speed is how you get to quality.
Fault-tolerance is hard, and in the case of metastable failures, maybe next-to-impossible and/or expensive. I have a hunch that we may not be able to avoid metastable failures entirely in large, non-trivial systems that are also economical to operate, because of these “forced” actions that systems sometimes have to take. However, the three strategies above remain effective mitigation approaches. Just replace “avoid” with “avoid as much as possible.”
A catastrophic accident has struck the Mars outpost. Communication with Earth is completely severed. Only a handful of survivors remain.
Marsettler is a simulation where players shape the story of these survivors. Your journey becomes a narrative—a story worth sharing.
A release? Infrastructure changes? The position of Mars?
Our investigation stalled for a while at this point – making guesses, testing guesses, trying to infer if the panic rate went up or down, or if nothing changed.
A reproducible crash with standard library only? This felt like conclusive evidence that our problem was a runtime bug.