Distributed Idempotency Key Collisions: Clock Skew Mutex Leaks, Race Conditions, and Double-Execution Vulnerabilities

Wrapping API handlers with naive Redis key locks (SET key val NX EX 30) to enforce idempotency creates an illusion of safety. Under concurrent traffic bursts, worker stalls, network partitions, and non-atomic status releases can cause duplicate executions: charging credit cards twice or creating duplicate database records. Here is an architectural... Weiterlesen: Distributed Idempotency Key Collisions: Clock Skew Mutex Leaks, Race …