Architect
Nov 2, 2015 · Backend Development
Handling Overselling in High‑Concurrency Scenarios: Pessimistic, FIFO, and Optimistic Lock Strategies
The article explains why overselling occurs in flash‑sale systems under high concurrency, analyzes the drawbacks of pessimistic locking and FIFO queues, and presents optimistic locking with version control as a more efficient solution for ensuring thread‑safe inventory updates.
FIFO queuebackendoptimistic lock
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