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掌握Couchbase:设计文档与实战电商应用
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更新于2023-06-01
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"《学习Couchbase》是一本由Henry Potsangbam编著的专业技术书籍,出版于2015年11月,由Packt Publishing发行。该书专注于设计文档以及如何在实际应用中实现电子商务系统,利用Couchbase作为关键的数据存储解决方案。Couchbase是一款NoSQL数据库管理系统,它以其可扩展性、高性能和文档型数据模型而闻名。 书中内容详尽,涵盖了Couchbase的基础概念、架构、设计最佳实践以及与之相关的开发工具和技术。作者通过实例和实战项目,引导读者理解如何设计和实施高效的数据存储策略,特别是在处理实时数据和分布式环境中的复杂需求时。此外,本书还可能包括对Couchbase的查询语言(N1QL)、缓存机制、数据一致性以及如何利用其强大的复制和分片功能进行高可用性和容错设计。 版权方面,该书受Packt Publishing所有,未经书面许可,不得以任何形式复制、存储或传输,除非用于嵌入在批评性文章或评论中。尽管作者和出版社努力确保信息的准确性,但本书提供的信息不附带任何保证,无论是明示的还是默示的,都不承担因使用本书内容而导致的直接或间接损害的责任。 在商标信息方面,虽然Packt Publishing试图准确地提及书中提到的所有公司和产品,但并不保证这些信息的绝对准确性。《学习Couchbase》旨在帮助读者深入了解Couchbase的核心功能,以便他们在实际工作中能有效地运用到这个现代数据库系统,提高应用性能和用户体验。对于想要进一步提升IT技能,尤其是对NoSQL技术感兴趣的读者来说,这是一本不可或缺的学习资料。"
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Preface
[ ix ]
Who this book is for
If you are new to the NoSQL document system or have little or no experience in
NoSQL development and administration and are planning to deploy Couchbase
for your next project, then this book is for you. It will be helpful to have a bit of
familiarity with Java.
Conventions
In this book, you will nd a number of text styles that distinguish between different
kinds of information. Here are some examples of these styles and an explanation of
their meaning.
Code words in text, database table names, folder names, lenames, le extensions,
pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "
You can use the rpm command to install Couchbase on Red Hat or CentOS."
A block of code is set as follows:
<dependencies>
<dependency>
<groupId>com.couchbase.client</groupId>
<artifactId>java-client</artifactId>
<version>2.1.3</version>
</dependency>
</dependencies>
Any command-line input or output is written as follows:
#/etc/init.d/couchbase-server start
#/etc/init.d/couchbase-server stop
New terms and important words are shown in bold. Words that you see on the
screen, for example, in menus or dialog boxes, appear in the text like this: "Clicking
the Next button moves you to the next screen."
Warnings or important notes appear in a box like this.
Tips and tricks appear like this.
www.it-ebooks.info
Preface
[ x ]
Reader feedback
Feedback from our readers is always welcome. Let us know what you think about
this book—what you liked or disliked. Reader feedback is important for us as it helps
us develop titles that you will really get the most out of.
To send us general feedback, simply e-mail feedback@packtpub.com, and mention
the book's title in the subject of your message.
If there is a topic that you have expertise in and you are interested in either writing
or contributing to a book, see our author guide at www.packtpub.com/authors.
Customer support
Now that you are the proud owner of a Packt book, we have a number of things to
help you to get the most from your purchase.
Downloading the example code
You can download the example code les from your account at http://www.
packtpub.com for all the Packt Publishing books you have purchased. If you
purchased this book elsewhere, you can visit http://www.packtpub.com/support
and register to have the les e-mailed directly to you.
Errata
Although we have taken every care to ensure the accuracy of our content, mistakes do
happen. If you nd a mistake in one of our books—maybe a mistake in the text or the
code—we would be grateful if you could report this to us. By doing so, you can save
other readers from frustration and help us improve subsequent versions of this book.
If you nd any errata, please report them by visiting http://www.packtpub.com/
submit-errata, selecting your book, clicking on the Errata Submission Form link,
and entering the details of your errata. Once your errata are veried, your submission
will be accepted and the errata will be uploaded to our website or added to any list of
existing errata under the Errata section of that title.
To view the previously submitted errata, go to https://www.packtpub.com/books/
content/support and enter the name of the book in the search eld. The required
information will appear under the Errata section.
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Preface
[ xi ]
Piracy
Piracy of copyrighted material on the Internet is an ongoing problem across all
media. At Packt, we take the protection of our copyright and licenses very seriously.
If you come across any illegal copies of our works in any form on the Internet, please
provide us with the location address or website name immediately so that we can
pursue a remedy.
Please contact us at copyright@packtpub.com with a link to the suspected
pirated material.
We appreciate your help in protecting our authors and our ability to bring you
valuable content.
Questions
If you have a problem with any aspect of this book, you can contact us at
questions@packtpub.com, and we will do our best to address the problem.
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Chapter 1
[ 1 ]
Introduction to Couchbase
This chapter will introduce a new type of database technology called NoSQL. You
too are a contributor to the evolution of this technology. Surprised? You do have a
Facebook account, upload pictures, and use messenger services, such as WeChat,
WhatsApp, right? The data in these are generated at a fast rate and in huge amounts
(terabytes per day). They also vary in format or structure. We usually use the term
big data for such types of data. Such large amounts of data can't be handled by a
traditional relational database management system. That is why a new way needs
to be discovered to solve this. This is how NoSQL came into existence. This chapter
will introduce you to NoSQL and its fundamentals. Next, you will be introduced to
one of the fastest NoSQL databases in the world, called Couchbase. Right, you read it
correct! It's the fastest database since all of the data is, by default, cached in the RAM
or volatile memory, and the most interesting part is that you don't need to do any
conguration for caching the data. Everything will be taken care of by Couchbase
Server. Following this, you will learn to install Couchbase Server in Windows and
Linux environments. Finally, this chapter will introduce you to the various logs and
conguration folders.
In this chapter, we will cover the following topics:
• What is NoSQL and why do we need it?
• Couchbase architecture
• Concepts of Couchbase
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