The Ultimate Guide to High Availability with MariaDB

Comments - Running Multiple MariaDB Server Processes

3 years, 7 months ago Testing User A Test
Re: Running Multiple MariaDB Server Processes

I can start multiple instance on MariaDB 10.5.8 as standalone db server by executing the following command:

  1. systemctl start mariadb@mysql_1

Here below is the content of server.cnf:

[Service] ProtectHome=false Environment='MYSQLD_MULTI_INSTANCE=--defaults-file=/etc/my%I.cnf \ --user=mysql \ --socket=/mysql_1/%I.sock \ --pid-file=/mysql_1/%I.pid \ --datadir=/mysql_1 \ --port=33061 \ --skip-networking'

[mysqld] collation-server = utf8mb4_unicode_ci init-connect='SET NAMES utf8mb4' character-set-server = utf8mb4

  1. unix_socket=OFF port=33061

[mariadb] collation-server = utf8mb4_unicode_ci init-connect='SET NAMES utf8mb4' character-set-server = utf8mb4

  1. unix_socket=OFF port=33061

The following is /mysql_1 directory information after I executed the systemctl start command:

[root@test /]# ll /mysql_1 total 110628 -rw-rw---- 1 mysql mysql 24576 Jan 30 22:30 aria_log.00000001 -rw-rw---- 1 mysql mysql 52 Jan 30 22:30 aria_log_control -rw-rw---- 1 mysql mysql 976 Jan 30 22:30 ib_buffer_pool -rw-rw---- 1 mysql mysql 12582912 Jan 30 22:30 ibdata1 -rw-rw---- 1 mysql mysql 100663296 Jan 30 22:30 ib_logfile0 -rw-rw---- 1 mysql mysql 0 Jan 30 21:36 multi-master.info drwx------ 2 mysql mysql 4096 Jan 30 21:33 mysql drwx------ 2 mysql mysql 20 Jan 30 21:33 performance_schema

I found the socket and port used were not the ones I defined above:

Feb 1 11:27:20 test mariadbd: Version: '10.5.8-MariaDB' socket: '/var/lib/mysql/mysql.sock' port: 3306 MariaDB Server

What's wrong with my configuration?

 
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