If you are an intermediate-level RabbitMQ developer, who wants to achieve professional-level expertise in the subject, this book is for you. You’ll also need to have a decent understanding of message queuing.

A practical book filled with advanced recipes as well as plenty of code and real-life examples which will make your learning curve quick and easy.If you are a software developer who wants to develop distributed applications based on messaging, then this book is for you. It’s assumed that you have some experience with multithreading applications and distributed applications. You are also expected to know the basic concepts of Web and cloud applications in order to follow the recipes effectively.

This book is a quick and concise introduction to RabbitMQ. Follow the unique case study of Clever Coney Media as they progressively discover how to fully utilize RabbitMQ, containing clever examples and detailed explanations.Whether you are someone who develops enterprise messaging products professionally or a hobbyist who is already familiar with open source Message Queuing software and you are looking for a new challenge, then this is the book for you. Although you should be familiar with Java, Ruby, and Python to get the most out of the examples, RabbitMQ Essentials will give you the push you need to get started that no other RabbitMQ tutorial can provide you with.

If you are a developer or system administrator with a basic knowledge of messaging who wants to learn RabbitMQ, or if you want to further enhance your knowledge in working with the message broker, then this book is ideal for you. To fully understand some examples in the book, a basic knowledge of the Java programming language is required.

本书从消息中间件的概念和RabbitMQ的历史切入，主要阐述RabbitMQ的安装、使用、配置、管理、运维、原理、扩展等方面的细节。本书大致可以分为基础篇、进阶篇和高阶篇三个部分。基础篇首先介绍RabbitMQ的基本安装及使用方式，方便零基础的读者以最舒适的方式融入到RabbitMQ之中。其次介绍RabbitMQ的基本概念，包括生产者、消费者、交换器、队列、绑定等。之后通过Java语言讲述了客户端如何与RabbitMQ建立（关闭）连接、声明（删除）交换器、队列、绑定关系，以及如何发送和消费消息等。进阶篇讲述RabbitMQ的 TTL、死信、延迟队列、优先级队列、RPC、消息持久化、生产端和消费端的消息确认机制等内容，以期读者能够掌握RabbitMQ的使用精髓。本书中间篇幅主要从RabbitMQ 的管理、配置、运维这三个角度来为读者提供帮助文档及解决问题的思路。高阶篇主要阐述RabbitMQ的存储机制、流控及镜像队列的原理，深入地讲述RabbitMQ的一些实现细节，便于读者加深对RabbitMQ的理解。本书还涉及网络分区的概念，此内容可称为魔鬼篇，需要掌握前面的所有内容才可理解其中的门道。本书最后讲述的是RabbitMQ的一些扩展内容及附录，供读者参考之用。

本书从消息中间件的概念和RabbitMQ的历史切入，主要阐述RabbitMQ的安装、使用、配置、管理、运维、原理、扩展等方面的细节。本书大致可以分为基础篇、进阶篇和高阶篇三个部分。基础篇首先介绍RabbitMQ的基本安装及使用方式，方便零基础的读者以最舒适的方式融入到RabbitMQ之中。其次介绍RabbitMQ的基本概念，包括生产者、消费者、交换器、队列、绑定等。之后通过Java语言讲述了客户端如何与RabbitMQ建立（关闭）连接、声明（删除）交换器、队列、绑定关系，以及如何发送和消费消息等。进阶篇讲述RabbitMQ的 TTL、死信、延迟队列、优先级队列、RPC、消息持久化、生产端和消费端的消息确认机制等内容，以期读者能够掌握RabbitMQ的使用精髓。本书中间篇幅主要从RabbitMQ 的管理、配置、运维这三个角度来为读者提供帮助文档及解决问题的思路。高阶篇主要阐述RabbitMQ的存储机制、流控及镜像队列的原理，深入地讲述RabbitMQ的一些实现细节，便于读者加深对RabbitMQ的理解。本书还涉及网络分区的概念，此内容可称为魔鬼篇，需要掌握前面的所有内容才可理解其中的门道。本书最后讲述的是RabbitMQ的一些扩展内容及附录，供读者参考之用。

This book is ideal for web developers who are looking to master modern JavaScript concepts and design principles. You should already have an intermediate level of JavaScript knowledge before starting this book.

Running concurrent, fault-tolerant applications that scale is a very demanding responsibility. After learning the abstractions that Elixir gives us, developers are able to build such applications with inconceivable low effort. There is a big gap between playing around with Elixir and running it in production, serving live requests. This book will help you fll this gap by going into detail on several aspects of how Elixir works and showing concrete examples of how to apply the concepts learned to a fully fledged application. In this book, you will learn how to build a rock-solid application, beginning by using Mix to create a new project. Then you will learn how the use of Erlang's OTP, along with the Elixir abstractions that run on top of it (such as GenServer and GenStage), that allow you to build applications that are easy to parallelize and distribute. You will also master supervisors (and supervision trees), and comprehend how they are the basis for building fault-tolerant applications. Then you will use Phoenix to create a web interface for your application. Upon fnishing implementation, you will learn how to take your application to the cloud, using Kubernetes to automatically deploy, scale, and manage it. Last, but not least, you will keep your peace of mind by learning how to thoroughly test and then monitor your application.

If you are a developer and an administrator who has deployed a Ceph cluster before and are curious about some of the most advanced features in order to improve performance then this book is for you

If you are a GIS developer or analyst who wants to master PostGIS to build efficient, scalable GIS applications, this book is for you. If you want to conduct advanced analysis of spatial data, this book will also help you. The book assumes that you have a working installation of PostGIS in place, and have working experience with PostgreSQL.