diff --git a/docs/databases/mysql/configure-master-master-mysql-database-replication/index.md b/docs/databases/mysql/configure-master-master-mysql-database-replication/index.md index 00fb3afe840..8b543e4ae11 100644 --- a/docs/databases/mysql/configure-master-master-mysql-database-replication/index.md +++ b/docs/databases/mysql/configure-master-master-mysql-database-replication/index.md @@ -7,7 +7,7 @@ og_description: 'MySQL Master-Master replication adds speed and redundancy. With keywords: ["set up mysql", "replication", "master-master", "high availability"] license: '[CC BY-ND 4.0](https://creativecommons.org/licenses/by-nd/4.0)' aliases: ['databases/mysql/backup-options/', 'databases/mysql/mysql-master-master/', 'databases/mysql/mysql-master-master-replication/'] -modified: 2017-10-10 +modified: 2018-12-18 modified_by: name: Linode published: 2014-12-24 @@ -25,16 +25,20 @@ MySQL Master-Master replication adds speed and redundancy for active websites. W {{< note >}} This guide is written for a non-root user. Commands that require elevated privileges are prefixed with `sudo`. If you're not familiar with the `sudo` command, you can check our [Users and Groups](/docs/tools-reference/linux-users-and-groups) guide. -This guide is written for Debian 7 or Ubuntu 14.04. +This guide is written for Debian 9 or Ubuntu 18.04. {{< /note >}} ## Install MySQL -Use the following commands to install MySQL on each of the Linodes: +1. Use the following commands to install MySQL on each of the Linodes: - sudo apt-get update - sudo apt-get upgrade -y - sudo apt-get install mysql-server mysql-client + sudo apt-get update + sudo apt-get upgrade -y + sudo apt-get install mysql-server mysql-client + +2. Run the MySQL secure installation command. You will be asked to create a root password. It is recommended you select yes to all of the questions: + + mysql_secure_installation ## Edit MySQL's Configuration @@ -43,6 +47,7 @@ Use the following commands to install MySQL on each of the Linodes: **Server 1:** {{< file "/etc/mysql/my.cnf" >}} +[mysqld] server_id = 1 log_bin = /var/log/mysql/mysql-bin.log log_bin_index = /var/log/mysql/mysql-bin.log.index @@ -60,6 +65,7 @@ auto-increment-offset = 1 **Server 2:** {{< file "/etc/mysql/my.cnf" >}} +[mysqld] server_id = 2 log_bin = /var/log/mysql/mysql-bin.log log_bin_index = /var/log/mysql/mysql-bin.log.index @@ -74,7 +80,7 @@ auto-increment-offset = 2 {{< /file >}} -2. For each of the Linodes, edit the `bind-address` configuration in order to use the private IP addresses: +2. Edit the `bind-address` configuration in order to use the private IP addresses, for each of the Linodes. {{< file "/etc/mysql/my.cnf" >}} bind-address = x.x.x.x @@ -84,7 +90,7 @@ bind-address = x.x.x.x 3. Once completed, restart the MySQL application: - sudo service mysql restart + sudo systemctl restart mysql ## Create Replication Users