Book Image

MySQL Admin Cookbook

By : Daniel Schneller, Udo Schwedt
Book Image

MySQL Admin Cookbook

By: Daniel Schneller, Udo Schwedt

Overview of this book

<p>MySQL is the most popular open-source database and is also known for its easy set up feature. However, proper configuration beyond the default settings still is a challenge, along with some other day-to-day maintenance tasks such as backing up and restoring, performance tuning, and server monitoring. These tasks have not been covered thoroughly in the default documentation.<br /><br />This book provides both step-by-step recipes and relevant background information on these topics and more. It covers everything from basic to advanced aspects of MySQL administration and configuration. One of the things you are really going to love about this book is that all recipes are based on real-world experience and were derived from proven solutions used in an enterprise environment.<br /><br />This book shows you everything you need to know about MySQL Administration. You will learn to set up MySQL replication to manage load balancing and deal with online backup and fail-over scenarios. As you consider the benefits of backing up, you might like to back up your database efficiently with advanced techniques covered in this book.<br /><br />The book demonstrates how to create, modify, and delete indexes. You will also learn to identify duplicate indexes, which hinder your MySQL server performance. This book focuses on administration tasks and will help you as an administrator to optimize the database for efficiency and reliability.<br /><br />You will learn to manage data efficiently by inserting data in existing database content and importing and exporting databases. The sooner you learn about taking advantage of metadata from this book, the sooner you can start using the space efficiently. Get to know about managing users and assigning privileges and regaining lost administrative user credentials. Finally, learn to manage the database schema by customizing it to automate database schema evolution in the context of application updates.</p>
Table of Contents (16 chapters)
MySQL Admin Cookbook
Credits
About the Authors
About the Reviewers
Preface
Index

Non-availability of InnoDB may escape monitoring


If the MySQL configuration file specifies parameters that make InnoDB fail to start—for example, too large memory values for the buffer pool—the server will start up without this particular storage engine, unless you have specified default-table-type=InnoDB in the configuration, too. If InnoDB is your default storage engine as per that parameter, then server startup will fail when InnoDB is not available.

One reason to be wary of this is that, if you are just monitoring if the server has been started and maybe do a simple query on the mysql database (or any other non-InnoDB table for that matter), then you might fail to notice that your server is not running correctly in time.

If you are using InnoDB primarily anyway, you should use the default-table-type parameter to make sure your server does not start up at all, if there is a problem with InnoDB.