ActiveMQ is an open-source message broker written in Java, which implements several messaging protocols. It provides a robust, scalable, and high-performance messaging solution for enterprise service bus (ESB) frameworks.
History
- ActiveMQ was initially developed by the Apache Software Foundation in 2004.
- It evolved from the JMS (Java Message Service) specification, aiming to provide a standards-based, open-source message broker.
- Over time, ActiveMQ has supported various protocols including AMQP, STOMP, MQTT, and OpenWire, making it versatile for different integration scenarios.
Key Features
- Support for Multiple Protocols: ActiveMQ supports multiple messaging protocols allowing it to integrate with various systems and applications.
- Clustering: It offers clustering capabilities for high availability and load balancing.
- JDBC and Journal Persistence: Provides options for message persistence to ensure messages are not lost.
- Message Filtering: Supports message selectors for consumer-based filtering.
- Security: Includes SSL/TLS support, authentication, and authorization mechanisms.
- Scalability: Designed to scale vertically or horizontally to meet the demands of enterprise applications.
Usage Context
ActiveMQ is widely used in:
- Enterprise Integration Patterns where it acts as a central point for message routing, transformation, and mediation.
- Event-Driven Architecture, facilitating asynchronous communication between different services or components.
- Large-scale systems requiring robust messaging infrastructure for real-time data processing, logging, and other data-centric applications.
Versions and Releases
As of the latest updates:
- ActiveMQ has gone through several major releases, with significant improvements in performance, security, and protocol support.
- The current active branches include ActiveMQ Classic and ActiveMQ Artemis, where Artemis represents the next generation of ActiveMQ.
Community and Support
- Being an Apache project, ActiveMQ benefits from a large community of developers and users who contribute to its development, documentation, and support.
- Commercial support is also available through various vendors who provide services around ActiveMQ.
External Links
Related Topics