Book Image

Learning RabbitMQ

By : Martin Toshev
Book Image

Learning RabbitMQ

By: Martin Toshev

Overview of this book

RabbitMQ is Open Source Message Queuing software based on the Advanced Message Queue Protocol Standard written in the Erlang Language. RabbitMQ is an ideal candidate for large-scale projects ranging from e-commerce and finance to Big Data and social networking because of its ease of use and high performance. Managing RabbitMQ in such a dynamic environment can be a challenging task that requires a good understanding not only of how to work properly with the message broker but also of its best practices and pitfalls. Learning RabbitMQ starts with a concise description of messaging solutions and patterns, then moves on to concrete practical scenarios for publishing and subscribing to the broker along with basic administration. This knowledge is further expanded by exploring how to establish clustering and high availability at the level of the message broker and how to integrate RabbitMQ with a number of technologies such as Spring, and enterprise service bus solutions such as MuleESB and WSO2. We will look at advanced topics such as performance tuning, secure messaging, and the internals of RabbitMQ. Finally we will work through case-studies so that we can see RabbitMQ in action and, if something goes wrong, we'll learn to resolve it in the Troubleshooting section.
Table of Contents (18 chapters)
Learning RabbitMQ
About the Author
About the Reviewers

Configuring RabbitMQ instances

RabbitMQ configuration can be established in several ways:

  • By setting proper environment variables

  • By modifying the RabbitMQ configuration file

  • By defining runtime parameters and policies that can be modified at runtime

Setting environment variables

Environment variables can be set using a standard mechanism provided by your OS (for example, using the Control Panel in Windows or setting them permanently from the shell in Linux). However they can also be specified in the scripts used to run the RabbitMQ broker, such as the rabbitmq-server utility, the rabbitmq-service utility (used in Windows to start RabbitMQ as a Windows service), or rabbitmq-env.conf (using in Unix-like operating systems by RabbitMQ to configure environment variables). At the beginning of the chapter we covered several such variables related to the location of the RabbitMQ database, logs, and configuration file. Here are several more you can configure: