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  • mysql 主从备份

    1.1、环境准备

    两台机器ip分别为

    100.100.100.105 (主)
    100.100.100.106(从)
    

    安装 mysql

    [root@centos ~]# yum install mysql-server mysql-client -y
    [root@centos ~]# service mysqld start
    [root@centos ~]# /usr/bin/mysqladmin -u root password '123456'
    
    1.2、修改配置文件
    100.100.100.105
    [root@centos ~]# vim /etc/my.cnf
    log-bin=mysql-bin
    server-id=105
    
    100.100.100.106
    [root@centos ~]# vim /etc/my.cnf
    log-bin=mysql-bin
    server-id=106
    
    1.3、添加mysql用户
    mysql> grant replication slave on *.* to slave@'100.100.100.106' identified by '123456';
    
    1.4、查看主服务器信息
    mysql> show master status;
    +------------------+----------+--------------+------------------+
    | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
    +------------------+----------+--------------+------------------+
    | mysql-bin.000004 |      261 |              |                  |
    +------------------+----------+--------------+------------------+
    1 row in set (0.00 sec)
    
    1.5、登录从mysql
    change master to
    master_user='slave',
    master_password='123456',
    master_host='100.100.100.105',
    master_log_file='mysql-bin.000004',
    master_log_pos=261;
    
    1.6、开启从mysql
    mysql> start slave;
    
    
    1.7、判断成功,可查看如下参数
    mysql> show slave statusG;
                Slave_IO_Running: Yes
                Slave_SQL_Running: Yes
    
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  • 原文地址:https://www.cnblogs.com/hjnzs/p/12200670.html
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