News for hackers. Stuff that matters.
Re:Apple open-sources FoundationDB by catwell on Friday April 20, 2018 @04:36AM (#16883134)
> In fact, our everyday testing was way more brutal than Jepsen, I gave a talk about it here: https://www.youtube.com/watch?v=4fFDFbi3toc

Unrelated to the original topic, but I had never come across that talk and it is great. I use the same basic approach to testing distributed systems (simulating all non-deterministic I/O operations) and that talk is a very good introduction to the principle.

Re:Apple open-sources FoundationDB by wenc on Friday April 20, 2018 @10:00AM (#16884805)
In reinforcement learning, the same approach (simulation) to addressing a data deficit is used, although the goal there is learning and not testing.

When certain events happen rarely, you have fake them deterministically so that you have reproducible coverage.