利用OpenStack Trove构建云数据库服务全攻略 - CSDN文库

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[ 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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