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两个场景下Mysqldump数据库备份恢复-流年似水
source link: https://blog.51cto.com/14322729/2419515
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完全备份mysqldump-A-F--single-transaction--master-data=2>/backup/fullbak`date+%F`.sqlless/backup/fullbak2019-07-11.sql模拟2点到18点的数据修改模拟存放数据库的硬盘损坏，所有数据库丢失还原数据库已经故障确保用户无法访问vi/etc/my.cnf#添加一行systemctlrestartma
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