Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
MariaDB High Performance

You're reading from   MariaDB High Performance Familiarize yourself with the MariaDB system and build high-performance applications

Arrow left icon
Product type Paperback
Published in Sep 2014
Publisher
ISBN-13 9781783981601
Length 298 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Pierre Mavro Pierre Mavro
Author Profile Icon Pierre Mavro
Pierre Mavro
Arrow right icon
View More author details
Toc

Table of Contents (13) Chapters Close

Preface 1. Performance Introduction 2. Performance Analysis FREE CHAPTER 3. Performance Optimizations 4. MariaDB Replication 5. WAN Slave Architectures 6. Building a Dual Master Replication 7. MariaDB Multimaster Slaves 8. Galera Cluster – Multimaster Replication 9. Spider – Sharding Your Data 10. Monitoring 11. Backups Index

Restricting replications


You saw how easy it is to create a replication. However, you may not want to replicate all your databases. In your MariaDB configuration file, you can configure which databases or tables you want to replicate.

Changing this can drastically reduce the traffic load and CPU usage. For example, if you've got 1 TB of databases and you only need 20 GB from the databases on your slaves for read purposes, you don't have to replicate all the data.

Another point would be about security access. Let's say you've got MariaDB instances placed in DMZ and you don't want all your data to be replicated (such as credentials, credits card details, and confidential information). You wouldn't want to expose all your data, as they could be stolen if you're attacked and hacked. In this case, you can limit what you want to sync. Notice that it is best practice to reduce privilege restrictions if you want to add additional security.

If you take the output of a SHOW SLAVE STATUS command, you...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime