System Design - redis
#01 Redis
Rate Limiting Algorithms with Redis Free
A practical breakdown of three rate limiting algorithms - Fixed Window, Sliding Window, and Token Bucket - with plain-language explanations, Redis-backed Node.js implementations, and a trade-off comparison to help you pick the right one.
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#02 Caching
The Cache That Made Things Worse Free
You added Redis to speed things up. Cache hit rate: 97%. But that 3% miss causes a thundering herd that overwhelms the DB every 5 minutes.
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