Book Image

RabbitMQ Essentials - Second Edition

By : Lovisa Johansson, David Dossot
Book Image

RabbitMQ Essentials - Second Edition

By: Lovisa Johansson, David Dossot

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.

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Table of Contents (8 chapters)
1
A Rabbit Springs to Life
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
2
Creating a Taxi Application
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
3
Sending Messages to Multiple Taxi Drivers
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
4
Tweaking Message Delivery
Tweaking Message Delivery
Technical requirements
Handling dead letters
Making delivery mandatory
Summary
5
Message Routing
Message Routing
Technical requirements
Sending responses to the publisher
Reply-to queues and RPC
Creating a data analysis service
Summary
6
Taking RabbitMQ to Production
Taking RabbitMQ to Production
Technical requirements
Adding nodes to the cluster
Discovering the types of RabbitMQ queues
Using federated brokers and log aggregation
Summary
7
Best Practices and Broker Monitoring
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
8
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Getting ready for RabbitMQ

To get started, the following three installation and configuration steps need to be completed:

  • Installing the RabbitMQ broker
  • Installing the management plugin (Web UI)
  • Configuring the vhost and user

Let's start by installing the broker!

Installing the broker

CC runs its production servers on Ubuntu Linux. One developer has macOS and Linux, while the other one is all Windows. This heterogeneity is not a concern for RabbitMQ, which can run natively on all these operating systems.

RabbitMQ provides complete online installation guides for all the supported operating systems, and they can be found here: http://www.rabbitmq.com/download.html. This book contains instructions for Debian/Ubuntu, where RabbitMQ is installed from the apt repository. It also contains instructions for Docker further down in this chapter.

RabbitMQ installation on Ubuntu

There are relatively few steps required to install RabbitMQ. They are as follows:

  1. Update Ubuntu.
  2. Download and install...
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