Gemini AI Engineering Suite

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System Design • Hard

Design a Global Rate Limiter with Redis & Sliding Window

10:00

Design a distributed rate limiter capable of handling 500,000 requests per second across multiple regional data centers. Explain how you would prevent race conditions using Redis sorted sets (ZSET) or Lua scripts, and how to handle client clock skews.

Evaluation Criteria Lookouts:

Mentions Redis Sorted Sets or Token Bucket algorithm

Addresses distributed concurrency using atomic Lua scripting

Considers multi-region latency and asynchronous sync

Outlines HTTP 429 Retry-After header standards

Your Structured Technical Response0 characters

Interactive AI Mock Interview Simulator

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Design a Global Rate Limiter with Redis & Sliding Window

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Resolving Technical Disagreement with Senior Stakeholders

Design a Global Rate Limiter with Redis & Sliding Window