Will Wilson of FoundationDB explains how the team tested their distributed database using deterministic simulation. By running the whole system in a simulator with injected faults and reproducible seeds, they could find rare concurrency and network bugs.

Why Hacker News readers recommend it: HN treats it as the canonical talk on simulation testing and a mind-blowing example of how far rigorous testing can go.

“this is one of the most amazing talks on distributed systems”

View the original HN discussion

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