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Preface

If you’re reading this, it’s because you heard about Storm somehow, and you’re interested in better understanding what it does, how you can use it to solve various problems, and how it works.

This book will get you started with Storm in a very straightforward and easy way.

The first few chapters will give you a general overview of the technologies involved, some concepts you should understand so we all speak the same language, and how to install and configure Storm. The second half of the book will get you deep into spouts, bolts and topologies (more about these in a moment). The last few chapters address some more advanced features that we consider very important and interesting, like using Storm with languages that are not JVM-based.

Skip to the first chapter for asciidoc markup demo; below is just "passthrough" DocBook markup... Conventions Used in This Book The following typographical conventions are used in this book: Italic Indicates new terms, URLs, email addresses, filenames, and file extensions. Constant width Used for program listings, as well as within paragraphs to refer to program elements such as variable or function names, databases, data types, environment variables, statements, and keywords. Constant width bold Shows commands or other text that should be typed literally by the user. Constant width italic Shows text that should be replaced with user-supplied values or by values determined by context. This icon signifies a tip, suggestion, or general note. This icon indicates a warning or caution. Using Code Examples This book is here to help you get your job done. In general, you may use the code in this book in your programs and documentation. You do not need to contact us for permission unless you’re reproducing a significant portion of the code. For example, writing a program that uses several chunks of code from this book does not require permission. Selling or distributing a CD-ROM of examples from O’Reilly books does require permission. Answering a question by citing this book and quoting example code does not require permission. Incorporating a significant amount of example code from this book into your product’s documentation does require permission. We appreciate, but do not require, attribution. An attribution usually includes the title, author, publisher, and ISBN. For example: “Book Title by Some Author (O’Reilly). Copyright 2011 Some Copyright Holder, 978-0-596-xxxx-x.” If you feel your use of code examples falls outside fair use or the permission given above, feel free to contact us at permissions@oreilly.com. Safari® Books Online Safari Books Online is an on-demand digital library that lets you easily search over 7,500 technology and creative reference books and videos to find the answers you need quickly. With a subscription, you can read any page and watch any video from our library online. Read books on your cell phone and mobile devices. Access new titles before they are available for print, and get exclusive access to manuscripts in development and post feedback for the authors. Copy and paste code samples, organize your favorites, download chapters, bookmark key sections, create notes, print out pages, and benefit from tons of other time-saving features. O’Reilly Media has uploaded this book to the Safari Books Online service. To have full digital access to this book and others on similar topics from O’Reilly and other publishers, sign up for free at http://my.safaribooksonline.com. How to Contact Us Please address comments and questions concerning this book to the publisher: O’Reilly Media, Inc. 1005 Gravenstein Highway North Sebastopol, CA 95472 800-998-9938 (in the United States or Canada) 707-829-0515 (international or local) 707-829-0104 (fax) We have a web page for this book, where we list errata, examples, and any additional information. You can access this page at: Don’t forget to update the <url> attribute, too. To comment or ask technical questions about this book, send email to: bookquestions@oreilly.com For more information about our books, courses, conferences, and news, see our website at . Find us on Facebook: Follow us on Twitter: Watch us on YouTube: Acknowledgements First and foremost, we would like to thank Nathan Marz who created Storm. His effort working on this opensource project is really admirable. We also would like to thank Dirk McCormick for his valuable guidance, advice and corrections. Without his precious time spent on this book we wouldn't have been able to finish it. Additionally we would like to thank Carlos Alvarez for his awesome observations and suggestions while reviewing the book. Besides, we would like to thank Shawn Wallace from O'Reilly for guiding us through the writing and reviewing process and providing us with a good environment and facilities to complete the project. Also, we would like to take this opportunity to thank MercadoLibre for giving us the time to play with Storm in real world applications. It gave us an opportunity to learn a lot about Storm. Finally, an honorable mention goes to our families and friends for their understanding and support for us in completing this project. Without the help of the people mentioned above, we would never have got there.