Scaling & High Availability – Complete Guide (Class 20)

Introduction As websites grow, a single server is no longer enough to handle heavy traffic. Scaling ensures that resources expand to meet demand, while high availability (HA) guarantees that services stay online even if one server fails. From clustering databases to using CDNs, scaling and HA are the foundation of reliable large-scale hosting. In this class, we will explore techniques and tools to achieve both. What is Scaling? Scaling means increasing resources to handle more...