MariaDB/Mysql的主主复制(主主互备)部署(Docker)

向右看齐 2022-03-15 17:38 346阅读 0赞

*  **拉取mariadb镜像**
    
    > docker pull mariadb
 *  **创建好数据卷文件**
    
    > mkdir /home/lxj/hedisql/data/master
    > 
    > mkdir /home/lxj/hedisql/data/slave1
 *  **运行主容器**
    
    > docker run --name master -e MYSQL\_ROOT\_PASSWORD=123456 -v /home/lxj/heidisql/data/master:/var/lib/mysql -p 23306:3306 --restart always -d mariadb
 *  **进入主容器执行(添加备份的账号)**
    
    > docker exec -it master /bin/bash
    > 
    > mysql -uroot -p123456
    > 
    > MariaDB \[(none)\]> grant replication slave on *.* to ‘backup’@’%’ identified by ‘123456’;
    > 
    > MariaDB \[(none)\]> flush privileges;
 *  **从容器中拷贝一份mariadb配置文件**
    
    > sudo docker cp master:/etc/mysql/my.cnf
    > 
    > /home/lxj/hedisql/data/master\_my.cnf
 *  **修改master\_my.cnf，在 \[mysqld\] 节点下添加**
    
    > \[mysqld\]  
    > server-id=1
    > 
    > log\_bin=master-bin
    > 
    > binlog-ignore-db=mysql
    > 
    > binlog-ignore-db=information\_schema
    > 
    > binlog-ignore-db=performance\_schema
    > 
    > binlog-ignore-db=test
    > 
    > innodb\_flush\_log\_at\_trx\_commit=1
    > 
    > binlog\_format=mixed
 *  **复制master\_my.cnf并覆盖master中的my.cnf**
    
    > docker cp /home/lxj/heidisql/data/master\_my.cnf master:/etc/mysql/my.cnf
 *  **重启master容器**
    
    > docker restart master
 *  **运行主容器2**
    
    > docker run --name master2 -e MYSQL\_ROOT\_PASSWORD=123456 -v /home/lxj/heidisql/data/master2:/var/lib/mysql -p 23307:3306 --restart always -d mariadb
 *  **进入主容器2执行(添加备份的账号)**
    
    > MariaDB \[(none)\]> grant replication slave on *.* to ‘backup’@’%’ identified by ‘123456’;
    > 
    > MariaDB \[(none)\]> flush privileges;
 *  **拷贝一份MySQL配置文件**
    
    > sudo docker cp master2:/etc/mysql/my.cnf /home/lxj/hedisql/data/master2\_my.cnf
 *  **修改master2\_my.cnf，在 \[mysqld\] 节点下添加**
    
    > \[mysqld\]
    > 
    > server-id=11
    > 
    > log\_bin=master2-bin
    > 
    > binlog-ignore-db=mysql
    > 
    > binlog-ignore-db=information\_schema
    > 
    > binlog-ignore-db=performance\_schema
    > 
    > binlog-ignore-db=test
    > 
    > innodb\_flush\_log\_at\_trx\_commit=1
    > 
    > binlog\_format=mixed
 *  **复制master\_my.cnf并覆盖master中的my.cnf**
    
    > docker cp /home/lxj/heidisql/data/master2\_my.cnf master2:/etc/mysql/my.cnf
 *  **重启master2容器**
    
    > docker restart master2
 *  **进入master容器执行**
    
    > MariaDB \[(none)\]> SHOW MASTER status;
 *  **查找master的log文件及其地址**
    
    > 如File 为master-bin.000005  
    > Position为4719
 *  **进入master2容器执行**
    
    > MariaDB \[(none)\]> SHOW MASTER status;
 *  **查找master2的log文件及其地址**
    
    > 如File 为master2-bin.000001  
    > Position为330
 *  **master容器执行**
    
    > MariaDB \[(none)\]> change master to  
    > MASTER\_HOST=‘10.18.139.141’,  
    > master\_user=‘root’,  
    > master\_password=‘123456’,  
    > MASTER\_PORT=23307,  
    > master\_log\_file=‘master2-bin.000001’,  
    > MASTER\_LOG\_POS=330;  
    > MariaDB \[(none)\]> start SLAVE;  
    > MariaDB \[(none)\]> show slave status;
 *  **master2容器执行**
    
    > MariaDB \[(none)\]> change master to  
    > MASTER\_HOST=‘10.18.139.141’,  
    > master\_user=‘root’,  
    > master\_password=‘123456’,  
    > MASTER\_PORT=23306,  
    > master\_log\_file=‘master-bin.000005’,  
    > MASTER\_LOG\_POS=4719;  
    > MariaDB \[(none)\]> start SLAVE;  
    > MariaDB \[(none)\]> show slave status;
 *  **查看结果**
    
    > 当结果中的Slave\_IO\_Running与Slave\_SQL\_Running都为Yes时表示配置成功。
 *  **进行测试**
    
    > 在master容器运行 MariaDB \[(none)\]> create database edslxj2;  
    > 在master2容器能够同步。  
    > 在master容器运行 MariaDB \[(none)\]> create database edslxj2222;  
    > 在master2容器能够同步。
    
    **部署成功**