Gaurav Sen System Design -

His essays and videos emphasize that an "excellent" system isn't the one with the most expensive tools; it’s the one where the trade-offs align perfectly with the business requirements. 3. Modularity and Decoupling

A fan favorite. Here, Sen moves beyond simple request-response to and Long Polling . He addresses the "Last Seen" timestamp problem and how to handle presence detection across millions of concurrent connections. He famously contrasts REST APIs (Stateless) with WebSocket Servers (Stateful) and explains how to scale the latter using Redis Pub/Sub. gaurav sen system design

Why should a photo upload wait for a thumbnail generation? Gaurav teaches that queues (Kafka, RabbitMQ) decouple producers and consumers. This improves fault tolerance and smooths out traffic spikes. His essays and videos emphasize that an "excellent"

: Exploring the trade-offs between SQL and NoSQL, and the implications of the CAP Theorem . Real-World Case Studies Here, Sen moves beyond simple request-response to and

Handling real-time, low-latency moves between players. How to Use His Resources for Interview Prep