Distributed Programming with Ruby

Foreword ix Preface xi Part I Standard Library 1 Chapter 1 Distributed Ruby (DRb) 3 Hello World 4 Proprietary Ruby Objects 10 Security 17 Access Control Lists (ACLs) 18 DRb over SSL 21 ID Conversion 28 Built-in ID Converters 29 Building Your Own ID Converter 33 Using Multiple ID Converters 34 Conclusion 35 Endnotes 36 Chapter 2 Rinda 37 "Hello World" the Rinda Way 38 Understanding Tuples and TupleSpaces 44 Writing a Tuple to a TupleSpace 44 Reading a Tuple from a TupleSpace 45 Taking a Tuple from a TupleSpace 48 Reading All Tuples in a TupleSpace 52 Callbacks and Observers 53 Understanding Callbacks 54 Implementing Callbacks 55 Security with Rinda 59 Access Control Lists (ACLs) 59 Using Rinda over SSL 61 Selecting a RingServer 63 Renewing Rinda Services 70 Using a Numeric to Renew a Service 71 Using nil to Renew a Service 72 Using the SimpleRenewer Class 72 Custom Renewers 73 Conclusion 75 Endnotes 76 Part II Third-Party Frameworks and Libraries 77 Chapter 3 RingyDingy 79 Installation 79 Getting Started with RingyDingy 80 "Hello World" the RingyDingy Way 81 Building a Distributed Logger with RingyDingy 82 Letting RingyDingy Shine 84 Conclusion 86 Chapter 4 Starfish 87 Installation 87 Getting Started with Starfish 88 "Hello World" the Starfish Way 90 Using the Starfish Binary 90 Saying Goodbye to the Starfish Binary 93 Building a Distributed Logger with Starfish 96 Letting Starfish Shine 99 MapReduce and Starfish 103 Using Starfish to MapReduce ActiveRecord 104 Using Starfish to MapReduce a File 110 Conclusion 112 Endnotes 113 Chapter 5 Distribunaut 115 Installation 116 Blastoff: Hello, World! 117 Building a Distributed Logger with Distribunaut 120 Avoiding Confusion of Services 123 Borrowing a Service with Distribunaut 126 Conclusion 128 Endnotes 129 Chapter 6 Politics 131 Installation 133 Working with Politics 135 Conclusion 141 Endnotes 142 Part III Distributed Message Queues 143 Chapter 7 Starling 145 What Is a Distributed Message Queue? 145 Installation 147

Mark Bates has been developing web applications of one kind or another since 1996. He has spent an ungodly amount of time programming Java, but thankfully he discovered Ruby in late 2005, and life has been much nicer since. Since discovering Ruby, Mark has become a prominent member of the community. He has developed various open-source projects, such as Configatron, Cachetastic, Genosaurus, APN on Rails, and the Mack Framework, just to name a few. The Mack Framework brought Mark to the forefront of distributed programming in the Ruby community. Mack was a web framework designed from the ground up to aid in the development of distributed applications. Mark has taught classes on both Ruby and Ruby on Rails. He has spoken at several Ruby gatherings, including 2008's RubyConf, where he spoke about building distributed applications. Mark has an honors degree in music from the Liverpool Institute for Performing Arts. He still likes to rock out on the weekends, but set times are now 10 p.m., not 2 a.m. He lives just outside of Boston with his wife Rachel and their sons Dylan and Leo, whom he missed very much when writing this book. Mark can be found at http://www.markbates.com and http://github.com/markbates.