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Tutorials, deep-dives, and insights on Java, DSA, System Design, AI, and more.
A step-by-step system design for 1M requests/sec — capacity math with Little's Law, edge caching, load balancing, multi-level caching, consistent-hash sharding, async queues, rate limiting, circuit breakers and autoscaling, with Java examples and the mistakes most designs make.
The algorithms behind API rate limiting, their trade-offs, and how to build a distributed limiter with an atomic Redis Lua script — a classic system design interview question, solved end to end.