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MariaDB High Performance

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

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Product type Paperback
Published in Sep 2014
Publisher
ISBN-13 9781783981601
Length 298 pages
Edition 1st Edition
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Author (1):
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Pierre Mavro Pierre Mavro
Author Profile Icon Pierre Mavro
Pierre Mavro
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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...

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