环境说明
- Docker
- Windows 11
- MySql 9.1.0
搭建步骤
1. 准备主库
-
准备一个主库的配置文件
master.cnf
[mysqld]
server-id=1
log-bin=mysql-bin
binlog-format=ROW
gtid_mode=ON
enforce-gtid-consistency=ON
log_slave_updates=ON
read_only=OFF
plugin-load=clone=mysql_clone.so -
执行 Docker run 启动主库容器
shell
docker run --name mysql-master --restart=unless-stopped -p 5300:3306 -e MYSQL_ROOT_PASSWORD=123456 -v C:\Users\Administrator\docker\MySql\replication\master\conf\master.cnf:/etc/mysql/conf.d/master.cnf:ro -v C:\Users\Administrator\docker\MySql\replication\master\data:/var/lib/mysql -d mysql
- 进入容器并登陆mysql
shell
docker exec -it mysql-master bash
mysql -u root -p
- 创建复制用户
sql
CREATE USER 'repl'@'%' IDENTIFIED with caching_sha2_password BY '123456';
GRANT REPLICATION SLAVE ON *.* TO 'repl'@'%';
FLUSH PRIVILEGES;
-
退出
EXIT;
2. 准备从库
-
准备一个从库的配置文件
slave.cnf
[mysqld]
server-id=2
log-bin=mysql-bin
binlog-format=ROW
gtid_mode=ON
enforce-gtid-consistency=ON
read_only=ON
plugin-load=clone=mysql_clone.so -
执行 Docker run
shell
docker run --name mysql-slave --restart=unless-stopped -p 5301:3306 -e MYSQL_ROOT_PASSWORD=123456 -v C:\Users\Administrator\docker\MySql\replication\slave\conf\slave.cnf:/etc/mysql/conf.d/slave.cnf:ro -v C:\Users\Administrator\docker\MySql\replication\slave\data:/var/lib/mysql -d mysql
- 进入容器并登陆mysql
shell
docker exec -it mysql-slave bash
mysql -u root -p
- 允许克隆来源
sql
SET GLOBAL clone_valid_donor_list = '172.17.0.6:3306';
- 执行克隆命令
sql
CLONE INSTANCE FROM 'root'@'172.17.0.6':3306 IDENTIFIED BY '123456';
-
克隆完成,从库会自动重启
-
重新进入后可以查看克隆状态
sql
select * from performance_schema.clone_status;
- 从库即可开启主从复制
sql
CHANGE REPLICATION SOURCE TO
SOURCE_HOST='172.17.0.6',
SOURCE_PORT = 3306,
SOURCE_USER='repl',
SOURCE_PASSWORD='123456',
GET_SOURCE_PUBLIC_KEY=1,
SOURCE_AUTO_POSITION=1;
start REPLICA;
SHOW REPLICA STATUS\G;
验证
- 主库执行下列SQL,完成后查看从库是否同步
sql
CREATE DATABASE test_db2; -- 创建数据库
USE test_db2; -- 切换数据库
CREATE TABLE users (
id INT AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50) NOT NULL,
email VARCHAR(100) NOT NULL
); -- 创建表
INSERT INTO users (name, email) VALUES ('tsj', 'tsj@example.com'); -- 插入数据
SELECT * FROM users; -- 查看数据