利用OpenStack Trove构建云数据库服务全攻略

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《OpenStack Trove 入门指南》是一本由 Alok Shrivastwa 和 Sunil Sarat 所著的实用教程，旨在帮助读者了解并利用 OpenStack 的数据库即服务（Database as a Service，DBaaS）组件——Trove。该书适合对 OpenStack 组件、关系型数据库管理系统（RDBMS）/非关系型数据库（NoSQL）、基础设施即服务（IaaS）以及云计算有一定基础的DBA、系统管理员或架构师，或者想要基于 OpenStack 构建自己的云数据库服务的学生。书中首先介绍了DBaaS的概念以及如何通过Trove在OpenStack平台上实现。作者指导读者从安装DevStack（开发栈）在虚拟机中开始，逐步了解Trove的配置和管理。章节内容包括： 1. **入门OpenStack Trove**：介绍Trove的基本概念和在OpenStack中的应用。 2. **设置Trove与DevStack**：在虚拟环境中部署Trove，并通过DevStack简化OpenStack的安装过程，以便更多时间用于数据库管理。 3. **Trove安装**：在现有OpenStack环境中安装Trove，扩展到实际生产环境。 4. **客制化guest镜像**：学习如何创建和准备Trove使用的数据库实例镜像。 5. **自助式数据库实例**：教授如何使用Trove进行数据库实例的自动化部署。 6. **Trove实例配置**：深入配置Trove，包括性能调优和数据库管理任务。 7. **备份与恢复**：学习如何备份和恢复数据库，确保数据安全。 8. **高级特性**：探讨Trove的高级功能，如数据库复制，满足更复杂的需求。本书采用快速、循序渐进的方式，让读者在实践中掌握DBaaS的核心原理和Trove的实际操作。版权信息表明，所有内容未经许可不得复制或传播，且出版商保证信息的准确性，但不承担因本书内容导致的任何损失。最后，书中提及的商标信息反映了作者尽职的努力，但并不能完全保证其准确性。本书首次发布于2016年3月。

[ vii ]

Preface

Database management has come a long way over the last decade or so. The process

of provisioning databases used to start with racking and stacking a physical

server, installing and conguring an operating system, and nally, installing and

conguring a database management system. This entire process took weeks and,

in some cases, months. Once the database is provisioned, you then of course have

a whole host of things to be managed, including availability, backups, security,

and performance. This provisioning and management consumed a lot of time and

resources. During the evolution, we had two trends that have had a signicant

impact on the way databases were provisioned and managed. Automation eased

the management aspect and virtualization eased the provisioning, at least up to

the operating-system layer. Meanwhile, the other trend that we have seen is that

enterprises are moving away from a single database technology model to a model

which is fancily termed "polyglot persistence". This basically means adopting

multiple database technologies with the intention of storing the data in a database

that is best suited for that type of data. With multiple types of database technologies

coming into play, enterprises are nding it difcult to manage this complexity while

maintaining corporate standards and compliance.

Preface

[ viii ]

Fortunately for us, over the last couple of years, cloud is the other trend that came to

our rescue. With the advent of cloud, we have initially seen self-service based agile

provisioning of infrastructure take off, which has been termed as Infrastructure as

a Service and has automated a lot of aspects and made infrastructure management

easier. Building on this a bit more, we now have self-service based agile provisioning

of multiple types of databases, which is popularly known as Database as a Service

(DBaaS). This has made things much easier for enterprises in terms of bringing in

efciencies and enforcing corporate standards and compliance. Enterprises can

avail DBaaS from a public cloud such as Amazon Web Services or Microsoft Azure.

Alternatively, they can build their own private cloud-based DBaaS and the need

for this could be owing to various reasons such as data privacy and security. This

is where OpenStack and Trove comes into the picture. OpenStack Trove is an open

source implementation of DBaaS. While it has been in existence for a couple of

years, it has started gaining momentum only recently with enterprises giving

it a serious thought.

The benets of DBaaS in general and OpenStack Trove in particular are obvious.

The key challenge, however, is that beyond the documentation that is available from

the OpenStack project itself, there is not much reading material out there to help

potential DBAs and system/cloud administrators. This lack of skill and know-how

is one of the potential inhibitors to OpenStack Trove adoption.

This book is an attempt to provide all the essential information that is necessary

to kick-start your learning of OpenStack Trove and set up your own cloud-based

DBaaS. In this book, the readers will be introduced to all major components of

OpenStack Trove. Following this, the readers will get to understand how to set

up Trove in both development and production environments, conguring it, and

performing management activities such as backup and restore. Not to mention,

it also deals with certain advanced database features, such as replication and

clustering. This book takes a more practical approach to learning, as the learning

from each chapter will contribute to the reader's ability to build his/her own private

cloud-based DBaaS by the time he/she completes reading this book. We hope you

will enjoy reading this book and, more importantly, nd it useful in your journey

towards learning and implementing DBaaS using OpenStack Trove.

What this book covers

Chapter 1, Introducing OpenStack Trove, introduces the concept of Database as a

Service and its advantages, followed by a quick introduction to the OpenStack

Trove project and its components.

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