segment locking

Architect

Jul 13, 2021 · Backend Development

Optimizing Distributed Lock Concurrency for High‑Throughput Order Scenarios

This article explains how high‑throughput e‑commerce order processing can suffer from inventory oversell when using a single distributed lock, analyzes the lock’s concurrency bottleneck, and proposes a segment‑locking optimization—splitting stock into multiple lock keys—to dramatically increase parallelism while addressing edge‑case pitfalls.