CDN Architecture: Design Patterns for Global Scale

Content Delivery Networks (CDNs) are fundamental to modern web architecture. Let’s explore key design patterns and implementation strategies for optimal content delivery. CDN Architecture Fundamentals Edge Location Strategy Effective CDN implementation requires careful planning of edge locations: Geographic Distribution Place edge nodes near user concentrations Consider regional traffic patterns Account for network topology Cache Strategy Static content: Aggressive caching Dynamic content: TTL-based invalidation API responses: Selective caching Implementation Patterns 1. Origin Shield Configuration # Nginx origin shield configuration location / { proxy_cache_use_stale error timeout http_500 http_502 http_503 http_504; proxy_cache_valid 200 302 1h; proxy_cache_valid 404 1m; proxy_cache my_cache_zone; proxy_cache_key $scheme$proxy_host$request_uri; } 2. Cache Control Headers Implement proper cache control headers: ...

2 min · Me

Database Scaling Patterns for High-Traffic Applications

As your application grows, database performance often becomes the primary bottleneck. Whether you’re handling millions of users or processing massive datasets, understanding and implementing the right scaling patterns is crucial. Let’s explore practical strategies for scaling databases in production environments. The Three Pillars of Database Scaling Before diving into implementations, it’s important to understand the three main approaches to database scaling: Read Replicas: Scale read operations by distributing them across multiple database copies Sharding: Partition data across multiple databases to distribute write load Caching: Reduce database load by serving frequently-accessed data from memory Let’s explore how to implement each of these strategies in a production environment. ...

4 min · Me