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RabbitMQ Essentials

By : Johansson, David Dossot

3.7 (3)

Buy this Book

RabbitMQ Essentials

3.7 (3)

By: Johansson, David Dossot

Buy this Book

Overview of this book

RabbitMQ is an open source message queuing software that acts as a message broker using the Advanced Message Queuing Protocol (AMQP). This book will help you to get to grips with RabbitMQ to build your own applications with a message queue architecture. You’ll learn from the experts from CloudAMQP as they share what they've learned while managing the largest fleet of RabbitMQ clusters in the world. Following the case study of Complete Car, you’ll discover how you can use RabbitMQ to provide exceptional customer service and user experience, and see how a message queue architecture makes it easy to upgrade the app and add features as the company grows. From implementing simple synchronous operations through to advanced message routing and tracking, you’ll explore how RabbitMQ streamlines scalable operations for fast distribution. This book will help you understand the advantages of message queue architecture, including application scalability, resource efficiency, and user reliability. Finally, you’ll learn best practices for working with RabbitMQ and be able to use this book as a reference guide for your future app development projects. By the end of this book, you’ll have learned how to use message queuing software to streamline the development of your distributed and scalable applications.

A Rabbit Springs to Life

Technical requirements

Explaining message queues

Discovering AMQP and RabbitMQ

Using RabbitMQ in real life

Exploring the benefits of message queuing

A RabbitMQ scenario

Getting ready for RabbitMQ

Summary

Free Chapter

Creating a Taxi Application

Technical requirements

The application architecture behind CC

Establishing a solid connection to RabbitMQ

Sending the first messages

Adding topic messages

Summary

Sending Messages to Multiple Taxi Drivers

Technical requirements

Working with channels and queues

Specifying a consumer prefetch count

Acknowledging messages

Publishing to all queues

Summary

Tweaking Message Delivery

Technical requirements

Handling dead letters

Making delivery mandatory

Summary

Message Routing

Technical requirements

Sending responses to the publisher

Reply-to queues and RPC

Creating a data analysis service

Summary

Taking RabbitMQ to Production

Technical requirements

Adding nodes to the cluster

Discovering the types of RabbitMQ queues

Using federated brokers and log aggregation

Summary

Best Practices and Broker Monitoring

How to avoid losing messages

Keeping queues and brokers clean

Routing best practices

Networking over connections and channels

Exploring key takeaways

Monitoring – querying the REST API

Summary

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Discovering the types of RabbitMQ queues

Queues in RabbitMQ can be durable or transient. Classic mirrored queues are recommended for transient message handling, while quorum queues are a good alternative for durable queues.

Durable queue metadata is stored on disk while a transient queue stores it in memory, when possible. Another queue type, lazy queues, writes the contents to disk as early as possible for both durable and transient messages.

Due to technical limitations in classic mirrored queues, it is difficult to make guarantees on how failures are handled. The RabbitMQ documentation (https://www.rabbitmq.com/ha.html) recommends that users get familiar with quorum queues and consider them instead of classic mirrored queues where possible.

Mirroring queues

In the case of CC, the data in the queues needs to be highly available. Mirrored queues provide this type of security. Queue mirroring uses a master-mirror design pattern. All message queuing and dequeuing actions happen with the...