Book Image

MySQL 8 Cookbook

By : Karthik Appigatla
Book Image

MySQL 8 Cookbook

By: Karthik Appigatla

Overview of this book

MySQL is one of the most popular and widely used relational databases in the World today. The recently released MySQL 8 version promises to be better and more efficient than ever before. This book contains everything you need to know to be the go-to person in your organization when it comes to MySQL. Starting with a quick installation and configuration of your MySQL instance, the book quickly jumps into the querying aspects of MySQL. It shows you the newest improvements in MySQL 8 and gives you hands-on experience in managing high-transaction and real-time datasets. If you've already worked with MySQL before and are looking to migrate your application to MySQL 8, this book will also show you how to do that. The book also contains recipes on efficient MySQL administration, with tips on effective user management, data recovery, security, database monitoring, performance tuning, troubleshooting, and more. With quick solutions to common and not-so-common problems you might encounter while working with MySQL 8, the book contains practical tips and tricks to give you the edge over others in designing, developing, and administering your database effectively.
Table of Contents (20 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Recovering from mydumper using myloader


myloader is a tool used for multi-threaded restoration of backups taken using mydumper. myloader comes along with mydumper and you don't need to install it separately. In this section, you will learn the various ways to restore a backup.

How to do it...

The common options for myloader are the hostname of the MySQL server to connect to (the default is localhost), username, password, and port.

Recovering full database

shell> myloader --directory=/backups --user=<user> --password=<password> --queries-per-transaction=5000 --threads=8 --compress-protocol --overwrite-tables

The options are explained as follows:

  • --overwrite-tables: This option drops the tables if they already exist
  • --compress-protocol : This option uses compression on the MySQL connection
  • --threads : This option specifies the number of threads to use; the default is 4
  • --queries-per-transaction : This specifies the number of queries per transaction; the default is 1000
  • --directory: This...