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Master Rate Limiter LLD and Concurrency · 📌 1. Functional Requirements A Rate Limiter system should: Limit requests per client/user Support multiple...
LLD and Concurrency Design for vending machine · 1️⃣ Functional Requirements A vending machine should support: Add products Add inventory...
Modern platforms (Reddit, LinkedIn, YouTube) support multiple reaction types per entity. Core Requirements ✅ One user → one reaction per entity ✅...
The Silent Cost Behind Fast Reads Indexes don’t make systems faster —they shift cost from reads to writes, memory, and latency tails. 🧠 The...
🧠 Real-World Scenario You’re building a live podcast platform where: A host starts a live podcast session. Multiple guests are invited to...
We are designing a meeting scheduler with the following requirements: There are N rooms. We are given a stream of meeting requests (start time, end...
![[Uber] Design 🏢(LLD) Meeting Scheduler - Machine Coding Interview](/_next/image?url=https%3A%2F%2Fcdn.hashnode.com%2Fres%2Fhashnode%2Fimage%2Fupload%2Fv1762715818010%2Fe4f3f7ed-47bd-4f08-8d0f-d82bc4ed2ec1.png%3Fw%3D1600%26h%3D840%26fit%3Dcrop%26crop%3Dentropy%26auto%3Dcompress%2Cformat%26format%3Dwebp&w=3840&q=75)