Java Garbage Collection

Garbage Collection automatically reclaims heap memory occupied by objects that are no longer reachable by any live thread. 1. Why GC exists Manual memory management is hard and error-prone: The JVM uses GC to: Production impact: 2. Heap structure (Young, Old, Metaspace) Modern HotSpot heap (simplified view): +———————————————————+| Java Heap || || +——————-+ +—————————–+ || […]

API Gateway

An API Gateway is a reverse proxy that manages and routes API requests between clients and backend services. The Big Picture: Where API Gateway Fits Modern applications rarely run as single monolithic programs. They consist of dozens or hundreds of independent services—user management, payments, inventory, recommendations—each with its own API. Without a gateway, clients must […]