What is ActiveMQ used for?

What is ActiveMQ (Active Message Queuing)? ActiveMQ is an open source protocol developed by Apache which functions as an implementation of message-oriented middleware (MOM). Its basic function is to send messages between different applications, but includes additional features like STOMP, JMS, and OpenWire.

What is the difference between ActiveMQ and Kafka?

Kafka is way faster than ActiveMQ. It can handle millions of messages per sec. ActiveMQ supports both message queues and publishes/subscribe messaging systems. On the other hand, Kafka is based on publish/subscribe but does have certain advantages of message-queues.

What is difference between JMS and ActiveMQ?

What Is the Difference Between JMS and ActiveMQ? ActiveMQ is a JMS provider. A JMS provider forms the software framework for facilitating the use of JMS concepts inside an application. A single node of ActiveMQ which allows clients to connect to it and use these messaging concepts is called an “ActiveMQ Broker.”

Is ActiveMQ a message broker?

ActiveMQ. Apache ActiveMQ® is the most popular open source, multi-protocol, Java-based message broker. It supports industry standard protocols so users get the benefits of client choices across a broad range of languages and platforms.

What is difference between RabbitMQ and ActiveMQ?

ActiveMQ is used in enterprise projects to store multiple instances and supports clustering environments based on the JMS messaging specification. RabbitMQ is a message broker which is executed in low-level AMQP protocol and acts as an intermediator between two application in the communication process.

What is ActiveMQ and Why Would I Use it?

Is ActiveMQ distributed?

The members of the unit are usually distributed across multiple servers within a cluster, with each queue member belonging to a separate JMS server. AMQ provides network connectors to connect AMQ servers as a cluster.

How does ActiveMQ queue work?

How does ActiveMQ work? Written in Java, ActiveMQ translates messages from sender to receiver. It can connect multiple clients and servers and allows messages to be held in queue, instead of requiring both the client and server to be available simultaneously in order to communicate.

How do I send a message to ActiveMQ queue?

Sending a message to an ActiveMQ Queue is very simple: you have to open the ActiveMQ Admin Console in the Web Browser using a link like http://HOSTNAME:8161/admin/index.jsp : Notes: 1) The default password for the ActiveMQ admin user is admin. 2) In real life, the messages are sent by different applications/ servers.

How do I connect to ActiveMQ?

Is ActiveMQ push or pull?

ActiveMQ will push as many messages to the consumer as fast as possible, where they will be queued for processing by an ActiveMQ Session. The maximum number of messages that ActiveMQ will push to a Consumer without the Consumer processing a message is set by the pre-fetch size.

Why Kafka is better than MQ?

IBM MQ vs Kafka: Use Cases

Kafka, on the other side, is better suited to large data frameworks such as Lambda. Kafka also has connectors and provides stream processing. Only the pub-sub architecture differs, with the exception that in the case of IBM MQ, previous message messages are not stored for new consumers.

Is ActiveMQ synchronous?

The default setting for ActiveMQ is that all persistent messages outside of a transaction are sent to a broker are synchronous.

What is producer and consumer in ActiveMQ?

ActiveMQ sends messages between client applications—producers, which create messages and submit them for delivery, and consumers, which receive and process messages.

How does ActiveMQ read data?

What is JMS queue?

JMS queue. A staging area that contains messages that have been sent and are waiting to be read (by only one consumer). As the name queue suggests, the messages are delivered in the order sent. A JMS queue guarantees that each message is processed only once.

How do I create a queue in ActiveMQ?

How many messages can ActiveMQ handle?

To get around this limitation, ActiveMQ introduced a paging cache - for all message stores (except the memory store) to get the best of both worlds - great performance and the ability to hold 100s of millions of messages in persistent store.

How do I view ActiveMQ messages?

When you have created a message in a queue, the message is displayed in the list of messages on the Queues tab. You can click a message in the list to display a detailed view of the message properties and message body contents.

What are topics in ActiveMQ?

What Is an ActiveMQ Topic? ActiveMQ topic is a pipeline of messages where a message comes in and goes to every subscriber.

Is ActiveMQ scalable?

1. Vertical scaling. Vertical scaling is a technique used to increase the number of connections (and therefore load) that a single ActiveMQ broker can handle. By default, the ActiveMQ broker is designed to move messages as efficiently as possible to ensure low latency and good performance.

How do I start ActiveMQ?

What is spring boot ActiveMQ?

spring-boot-starter-activemq : It provides all the required dependencies to integrate JMS and activemq with spring boot. activemq-broker : This provides embedded activemq in spring boot application. But since, we will be configuring our activemq outside the application we have commented it for time being.

What is the best message queue?

Why use Kafka over RabbitMQ?

RabbitMQ's queues are fastest when they're empty, while Kafka retains large amounts of data with very little overhead - Kafka is designed for holding and distributing large volumes of messages. (If you plan to have very long queues in RabbitMQ you could have a look at lazy queues.)