üzenetbroker

A üzenetbroker, also known as a message broker or middleware, is a software component that facilitates communication between different applications, services, or systems by managing the exchange of messages. It acts as an intermediary, decoupling senders and receivers, allowing them to operate independently without needing direct knowledge of each other’s existence or implementation details.

Message brokers are commonly used in distributed systems to ensure reliable, asynchronous communication. They handle tasks such as message queuing, routing, and delivery, often providing features like persistence, acknowledgment mechanisms, and fault tolerance. This helps improve scalability, resilience, and flexibility in software architectures.

Popular message brokers include Apache Kafka, RabbitMQ, and Apache ActiveMQ, each offering distinct strengths depending on use cases. For example, Kafka excels in high-throughput, distributed logging and stream processing, while RabbitMQ is widely used for lightweight messaging with support for multiple protocols.

The concept of a message broker is particularly valuable in microservices architectures, where services communicate over networks rather than through shared memory. By abstracting communication details, brokers reduce coupling between components, making systems easier to maintain and extend.

Security, performance, and reliability are key considerations when selecting or implementing a message broker. Features such as authentication, encryption, and monitoring help ensure secure and efficient message handling. Additionally, brokers often support various message formats (e.g., JSON, XML) and quality-of-service guarantees (e.g., exactly-once delivery) to meet application requirements.