Airbnb Builds Himeji – A Scalable Centralized Authorization System
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Airbnb recently described how it built Himeji, a scalable centralized authorization system. Himeji stores permissions data and performs permission checks as a central source of truth. It uses a sharded and replicated in-memory cache to improve performance and lower latencies and has served checks in production for about a year. (Read more on InfoQ)