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RabbitMQ Essentials.pdf

发布时间：2022-06-27 发布人：admin 分类：说明书 资料大小：7.20M 资料格式：pdf 举报 版权申诉
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    Cover
    Copyright
    Credits
    Foreword
    About the Author
    About the Reviewers
    www.PacktPub.com
    Table of Contents
    Preface
    Chapter 1: A Rabbit Springs to Life
    What is messaging?
    A loosely coupled architecture
    Meet AMQP
    The RabbitMQ broker
    A case for RabbitMQ
    Getting RabbitMQ ready
    Installing the broker
    Installing the management plugin
    Configuring users
    Summary
    Chapter 2: Creating an Application Inbox
    Connecting to RabbitMQ
    Working with channels
    Building the inbox
    Sending user messages
    AMQP message structure
    Fetching user messages
    Seeing it run
    Adding topic messages
    Summary
    Chapter 3: Switching to Server-push
    Moving beyond polling
    Consuming queues
    Creating a consumer subscription wrapper
    Babysitting subscriptions
    Tying into the WebSocket endpoint
    Running the application
    Publishing to all queues
    Binding to the fanout
    Publishing to all
    Running the application
    Summary
    Chapter 4: Handling Application Logs
    Publishing and consuming logs
    Load testing AMQP
    Running a load test
    Prefetching messages
    Messaging serendipity
    Summary
    Chapter 5: Tweaking Message Delivery
    Handling dead letters
    Refactoring queues
    Undertaking messages
    Making delivery mandatory
    Implementing the back-office sender
    Summary
    Chapter 6: Smart Message Routing
    Service-oriented messaging
    Replying to queues
    Routing service requests
    Exposing the authentication service
    Calling the authentication service
    Summary
    Chapter 7: Taking RabbitMQ to Production
    Tackling the broker SPOF
    Mirroring queues
    Connecting to the cluster
    Federating brokers
    Monitoring the broker
    Summary
    Chapter 8: Testing and Tracing Applications
    Testing RabbitMQ applications
    Unit testing RabbitMQ applications
    Integration testing RabbitMQ applications
    Tracing RabbitMQ
    Drinking at the Firehose
    Summary
    Appendix: Message Schemas
    User message
    Authentication messages
    Login
    Request
    Response
    Logout
    Request
    Response
    Generic error message
    Index
    www.it-ebooks.info
    RabbitMQ Essentials Hop straight into developing your own messaging applications by learning how to utilize RabbitMQ David Dossot BIRMINGHAM - MUMBAI
    RabbitMQ Essentials Copyright © 2014 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information. First published: April 2014 Production Reference: 1180414 Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK. ISBN 978-1-78398-320-9 www.packtpub.com www.it-ebooks.info
    Credits Project Coordinator Puja Shukla Proofreader Ameesha Green Indexer Monica Ajmera Mehta Graphics Sheetal Aute Ronak Dhruv Abhinash Sahu Production Coordinator Alwin Roy Cover Work Alwin Roy Cover Image Sheetal Aute Author David Dossot Reviewers Ken Pratt Ken Taylor Ignacio Colomina Torregrosa Héctor Veiga Commissioning Editor Ashwin Nair Acquisition Editor Richard Harvey Content Development Editor Govindan K Technical Editors Shruti Rawool Nachiket Vartak Copy Editors Aditya Nair Kirti Pai www.it-ebooks.info
    www.it-ebooks.info
    Foreword What gets me most excited about RabbitMQ is that people keep finding new and better ways to use it. Messaging has truly come of age and stands beside databases and web applications as a technology that every professional developer needs to know. In 2006, when RabbitMQ was born, messaging was mostly used by companies that had way too many IT systems and desperately needed some way to connect them. Jargon words such as "pubsub" and "queue" were strictly for messaging geeks and highly paid integration consultants. But the world was already changing and we were about to find out why. Today's software and web applications are increasing in scale rapidly. There are more users, apps, devices, places, and ways to connect; this creates a burning need to build more scalable applications. At the same time, these new applications have to integrate with existing systems and services written using any language or API you care to think of. There is only one way to deliver scalability in this kind of environment: use messaging. The best way to do that is via a product such as RabbitMQ. We started RabbitMQ because there was no messaging tool that was really powerful and dependable, yet easy to get started with. We decided to make one. We hope you like it. The fun part is designing the tool so that you, the developer, feel like RabbitMQ is actually helping you to build better apps, instead of getting in the way. Your use of the tool should grow with your system. www.it-ebooks.info
    The hard part is balancing simplicity and power. With RabbitMQ, we think we got this about right. Developers have little tolerance for complexity and nonsense. But beware! There is such a thing as "fake simplicity"; if a tool makes promises that seem too good to be true, then something is almost certainly broken. A truly simple system makes its capabilities obvious when they are needed. RabbitMQ will never lie to you or conceal its true behavior and we think this is essential in a good tool. In this book, David Dossot has shown how messaging can help anyone architect and design solid scalable apps and how RabbitMQ can deliver on this promise. In 2014, everyone can grok the basics of messaging. Read this book to get started. Alexis Richardson Former CEO, Rabbit Technologies Inc. www.it-ebooks.info
    About the Author David Dossot has worked as a software engineer and an architect for more than 18 years. He has been using RabbitMQ since 2009 in a variety of different contexts. He is the main contributor to the AMQP transport for Mule. His focus is on building distributed and scalable server-side applications for the JVM and the Erlang VM. He is a member of IEEE, the Computer Society, and AOPA, and holds a diploma in Production Systems Engineering from ESSTIN. He is a co-author for the first and second editions of Mule in Action (Manning Publications Co.). He is a Mule champion and a DZone Most Valuable Blogger. He commits on multiple open source projects and likes to help people on Stack Overflow. He's also a judge for the annual Jolt Awards software competition. I would like to thank my wife for giving the thumbs up to this book project, while just recovering from the previous book. It was a stretch goal, but with her support and the patience and love of the rest of my family, it became possible. I'm also grateful to the rainy winters we get in the Pacific Northwest as I didn't feel bad staying inside writing! I would like to extend a special thanks to our early reviewers— without them, the book wouldn't be as great as it is now. I want to use this opportunity to give kudos to a bunch of first class software engineers and architects who have inspired me and from whom I've learned so much throughout my career: Romuald van der Raaij, André Weber, Philip Thomas, Pierre-Antoine Grégoire, Carl Schmidt, Tim Meighen, Josh Devins, Dominic Farr, Erik Garrett, and Ken Pratt. www.it-ebooks.info
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