· 6 days ago· Dev.to
NoSQL Concurrency Issues: The Hidden Danger of Read-Modify-Write Operations.
Part 1 of 3 — the single-document case. There's a class of bug that every backend engineer ships at least once, usually Take a concrete invariant: a team can hold at most 10 seats. To add a seat you count < 10, and write. A textbook Read → Modify → Write. Now run it twice at the same instant. Reques
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