Why Redis Distributed Locks Fail and How to Fix Leak and Mis‑release Issues

A Redis lock timeout caused users to be blocked for two hours, revealing problems with lock leakage and mis‑release; the article explains the root causes, proper use of SETNX with EXPIRE, and Lua scripts for atomic operations and safe lock deletion.

ExpireLuaatomic

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Why Redis Distributed Locks Fail and How to Fix Leak and Mis‑release Issues