MariaDB双主模式测试
1. 环境准备
创建目录 mkdir conf conf2 data data2 log log2
创建 MariaDB 配置文件 touch conf/my.cnf conf2/my.cnf
conf/my.cnf文件
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# The MariaDB configuration file
#
# The MariaDB/MySQL tools read configuration files in the following order:
# 0. "/etc/mysql/my.cnf" symlinks to this file, reason why all the rest is read.
# 1. "/etc/mysql/mariadb.cnf" (this file) to set global defaults,
# 2. "/etc/mysql/conf.d/*.cnf" to set global options.
# 3. "/etc/mysql/mariadb.conf.d/*.cnf" to set MariaDB-only options.
# 4. "~/.my.cnf" to set user-specific options.
#
# If the same option is defined multiple times, the last one will apply.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# If you are new to MariaDB, check out https://mariadb.com/kb/en/basic-mariadb-articles/
#
# This group is read both by the client and the server
# use it for options that affect everything
#
[client-server]
# Port or socket location where to connect
# port = 3306
socket = /run/mysqld/mysqld.sock
# Import all .cnf files from configuration directory
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mariadb.conf.d/
[mysqld]
server-id=1
log-bin=mysql-bin
binlog_format = mixed
binlog-do-db=event_analysis
binlog-ignore-db =mysql
binlog-ignore-db =information_schema
binlog-ignore-db =performance_schema
replicate-do-db=event_analysis
replicate-ignore-db=mysql
replicate-ignore-db=information_schema
replicate-ignore-db=performance_schema
read-only=0
relay_log=mysqld-relay-bin
log-slave-updates=ON
auto-increment-increment = 2
auto-increment-offset = 1
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conf/my.cnf文件
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# The MariaDB configuration file
#
# The MariaDB/MySQL tools read configuration files in the following order:
# 0. "/etc/mysql/my.cnf" symlinks to this file, reason why all the rest is read.
# 1. "/etc/mysql/mariadb.cnf" (this file) to set global defaults,
# 2. "/etc/mysql/conf.d/*.cnf" to set global options.
# 3. "/etc/mysql/mariadb.conf.d/*.cnf" to set MariaDB-only options.
# 4. "~/.my.cnf" to set user-specific options.
#
# If the same option is defined multiple times, the last one will apply.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# If you are new to MariaDB, check out https://mariadb.com/kb/en/basic-mariadb-articles/
#
# This group is read both by the client and the server
# use it for options that affect everything
#
[client-server]
# Port or socket location where to connect
# port = 3306
socket = /run/mysqld/mysqld.sock
# Import all .cnf files from configuration directory
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mariadb.conf.d/
[mysqld]
server-id=2
log-bin=mysql-bin
binlog_format = mixed
binlog-do-db=event_analysis
binlog-ignore-db =mysql
binlog-ignore-db =information_schema
binlog-ignore-db =performance_schema
replicate-do-db=event_analysis
replicate-ignore-db=mysql
replicate-ignore-db=information_schema
replicate-ignore-db=performance_schema
read-only=0
relay_log=mysqld-relay-bin
log-slave-updates=ON
auto-increment-increment = 2
auto-increment-offset = 1
|
使用 docker 启动两个 MariaDB 容器 bak1 和 bak2 。使用 docker-compose up 启动容器。
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version: '2'
services:
"mariadb":
image: mariadb:10.5.5
container_name: "bak1"
restart: always
environment:
MYSQL_USER: "root"
MYSQL_PASSWORD: "123456"
MYSQL_ROOT_PASSWORD: "123456"
TZ: "Asia/Shanghai"
ports:
- "3307:3306"
volumes:
- ./data:/var/lib/mysql
- ./log:/var/log/mysql
- ./conf/my.cnf:/etc/mysql/my.cnf
networks:
mysql_bak_net:
"mariadb2":
image: mariadb:10.5.5
container_name: "bak2"
restart: always
environment:
MYSQL_USER: "root"
MYSQL_PASSWORD: "123456"
MYSQL_ROOT_PASSWORD: "123456"
TZ: "Asia/Shanghai"
ports:
- "3308:3306"
volumes:
- ./data2:/var/lib/mysql
- ./log2:/var/log/mysql
- ./conf2/my.cnf:/etc/mysql/my.cnf
networks:
mysql_bak_net:
networks:
mysql_bak_net:
|
2. 操作步骤
| 容器名 |
bak1 |
bak2 |
| ip |
172.24.0.3 |
172.24.0.2 |
| user |
root |
root |
| password |
123456 |
123456 |
| server-id |
1 |
2 |
| 进入容器 |
docker exec -it bak1 bash |
docker exec -it bak2 bash |
| 进入sql |
mysql -u root -p |
mysql -u root -p |
| 查看master状态 |
show master status\G;
File: mysql-bin.000003
Position: 328
Binlog_Do_DB: event_analysis
Binlog_Ignore_DB: mysql,information_schema,performance_schema
 |
show master status\G;
File: mysql-bin.000003
Position: 328
Binlog_Do_DB: event_analysis
Binlog_Ignore_DB: mysql,information_schema,performance_schema
 |
| 主从复制 |
CHANGE MASTER TO
MASTER_HOST=‘172.24.0.2’,
MASTER_USER=‘root’,
MASTER_PASSWORD=‘123456’,
MASTER_LOG_FILE=‘mysql-bin.000003’,
MASTER_LOG_POS=328; |
CHANGE MASTER TO
MASTER_HOST=‘172.24.0.3’,
MASTER_USER=‘root’,
MASTER_PASSWORD=‘123456’,
MASTER_LOG_FILE=‘mysql-bin.000003’,
MASTER_LOG_POS=328; |
| 查看slave状态 |
show slave status\G;
 |
show slave status\G;
 |
| 重启MariaDB |
|
|
| 查看slave状态 |
show slave status\G;
 |
show slave status\G;
 |
| 验证 |
在bak1中创建表，更新数据，bak2也会更新。 |
在bak2中创建表，更新数据，bak1也会更新。 |
