Apache Kafka is an open-source distributed event streaming platform designed for high-throughput, fault-tolerant, and scalable processamento de dados em tempo real. Originally developed by LinkedIn and later donated to the Apache Desenvolvimento de Software Foundation, Kafka serves as a central hub for data streams, allowing users to publish, subscribe to, store, and process streams of records in real-time.
At its core, Kafka operates on a publish-subscribe model, where data producers send messages to topics, and consumers read messages from these topics. The architecture consiste em vários componentes:
- Produtores: Aplicações que enviam dados para tópicos do Kafka.
- Tópicos: Categories that organize the messages, allowing for structured gerenciamento de dados.
- Consumidores: Aplicações que leem e processam mensagens dos tópicos.
- Corretores: Kafka servers that store and manage the data, ensuring reliability and scalability.
- Zookeeper: A component that manages and coordinates the Kafka brokers, handling leader election and configuration management.
Kafka is designed to handle large volumes of data with low latency, making it suitable for applications such as análises em tempo real, log aggregation, data integration, and streaming ETL (Extract, Transform, Load) processes. Its distributed nature allows it to scale horizontally by adding more brokers to the cluster, which can handle increased load without sacrificing performance.
Many organizations use Kafka to build data-driven applications that require high availability, durability, and fault tolerance. Its ecosystem includes various connectors for integrating with databases, cloud services, and other data sources, enhancing its utility in modern data architectures.