The document discusses using AMQP/MQ Light as a microservices transport. It compares using MQ Light to using REST for communication between microservices. MQ Light uses a publish-subscribe model where services subscribe to topics to receive messages, rather than services calling each other directly. This allows for looser coupling between services and avoids services needing to know about changes to other services.
Apache ActiveMQ is an open-source messaging and integration pattern server that allows for message throttling, redelivery, and delay. This document discusses how to install and configure ActiveMQ, including setting up dead letter queues and clustering multiple ActiveMQ instances. The key steps are: 1) Installing ActiveMQ on each node, 2) Configuring dead letter queues by setting redelivery policies in activemq.xml, and 3) Configuring clustering by giving each broker a unique name, connecting them to a shared SQL database, and starting one as the master node.
This document summarizes common problems and solutions when using ActiveMQ. It addresses questions about creating JMS clients from scratch, efficiently managing connections, consuming only certain messages, reasons for locking/freezing, when a network of brokers is needed, and using a master/slave configuration. Spring JMS and selectors are recommended over building clients from scratch. Connection pooling and caching are advised for efficiency. Selectors and proper design can filter messages. Memory, prefetch limits, and cursors impact performance and need configuration. Networked brokers improve availability while master/slave configurations provide high availability.
This document provides an overview and summary of ActiveMQ features for message-oriented middleware including messaging domains, durability vs persistence, message acknowledgement vs transactions, synchronous vs asynchronous message consumption, broker clustering, master/slave configurations, security options, wire formats for non-Java clients, handling disconnected producers/consumers, consumer options, slow consumer strategies, monitoring broker statistics, and an introduction to Apache Camel for integration.
The document discusses the complexities and solutions related to messaging in the Internet of Things (IoT), focusing on the roles of protocols like JMS, MQTT, and AMQP, as well as messaging brokers such as Apache ActiveMQ and Artemis. It explores the challenges in IoT environments, including interoperability, scalability, and reliability, while outlining the advantages and limitations of various communication patterns and technologies. Additionally, it emphasizes innovative tools like the Qpid Dispatch Router that facilitate scalable deployments in IoT messaging infrastructure.
Messaging for Web and Mobile with Apache ActiveMQdejanb
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This document summarizes a presentation on messaging for web and mobile applications using Apache ActiveMQ. The presentation covered challenges with HTTP messaging, advantages of STOMP and MQTT protocols, and examples of using STOMP over WebSocket for browser messaging and MQTT for mobile apps. It also provided an overview of Apache ActiveMQ's support for STOMP, including client examples in Java.
This document provides an overview of Apache ActiveMQ, an open source messaging system. It discusses what ActiveMQ is, its basics like topics and queues, techniques for scaling such as vertical, horizontal and hybrid approaches, ensuring high availability, and its future direction with ActiveMQ Apollo. The presentation aims to explain how ActiveMQ works and how to configure it for different deployment needs.
Apache ActiveMQ is an open-source messaging and integration pattern server that allows for message throttling, redelivery, and delay. This document discusses how to install and configure ActiveMQ, including setting up dead letter queues and clustering multiple ActiveMQ instances. The key steps are: 1) Installing ActiveMQ on each node, 2) Configuring dead letter queues by setting redelivery policies in activemq.xml, and 3) Configuring clustering by giving each broker a unique name, connecting them to a shared SQL database, and starting one as the master node.
This document summarizes common problems and solutions when using ActiveMQ. It addresses questions about creating JMS clients from scratch, efficiently managing connections, consuming only certain messages, reasons for locking/freezing, when a network of brokers is needed, and using a master/slave configuration. Spring JMS and selectors are recommended over building clients from scratch. Connection pooling and caching are advised for efficiency. Selectors and proper design can filter messages. Memory, prefetch limits, and cursors impact performance and need configuration. Networked brokers improve availability while master/slave configurations provide high availability.
This document provides an overview and summary of ActiveMQ features for message-oriented middleware including messaging domains, durability vs persistence, message acknowledgement vs transactions, synchronous vs asynchronous message consumption, broker clustering, master/slave configurations, security options, wire formats for non-Java clients, handling disconnected producers/consumers, consumer options, slow consumer strategies, monitoring broker statistics, and an introduction to Apache Camel for integration.
The document discusses the complexities and solutions related to messaging in the Internet of Things (IoT), focusing on the roles of protocols like JMS, MQTT, and AMQP, as well as messaging brokers such as Apache ActiveMQ and Artemis. It explores the challenges in IoT environments, including interoperability, scalability, and reliability, while outlining the advantages and limitations of various communication patterns and technologies. Additionally, it emphasizes innovative tools like the Qpid Dispatch Router that facilitate scalable deployments in IoT messaging infrastructure.
Messaging for Web and Mobile with Apache ActiveMQdejanb
?
This document summarizes a presentation on messaging for web and mobile applications using Apache ActiveMQ. The presentation covered challenges with HTTP messaging, advantages of STOMP and MQTT protocols, and examples of using STOMP over WebSocket for browser messaging and MQTT for mobile apps. It also provided an overview of Apache ActiveMQ's support for STOMP, including client examples in Java.
This document provides an overview of Apache ActiveMQ, an open source messaging system. It discusses what ActiveMQ is, its basics like topics and queues, techniques for scaling such as vertical, horizontal and hybrid approaches, ensuring high availability, and its future direction with ActiveMQ Apollo. The presentation aims to explain how ActiveMQ works and how to configure it for different deployment needs.