Apache Kafka - Event Streaming

## The Central Nervous System of Data Kafka flips the traditional database model on its head by treating data not as static rows, but as an ever-flowing stream of events. ### System Architecture - **Distributed Commit Log**: At its core, Kafka is a heavily optimized, distributed, and partitioned append-only log, ensuring immense throughput and fault tolerance. - **Zero-Copy Architecture**: Bypasses user-space by transferring data directly from disk buffer to network socket, achieving millions of messages per second on modest hardware. - **Decoupled Consumers**: Producers and consumers are completely isolated; consumers maintain their own offsets, allowing for replayability and multi-tenant data consumption.