https://support.huaweicloud.com/bestpractice-rds/rds_02_0010.html
    https://segmentfault.com/a/1190000023827696
    https://spongecaptain.cool/post/database/logicalandphicallog/
    https://www.jianshu.com/p/376d14dee31c
    http://mysql.taobao.org/monthly/2017/09/07/
    https://blog.csdn.net/weixin_33343700/article/details/113433917
    https://blog.csdn.net/weixin_42012911/article/details/105943254
    https://www.jianshu.com/p/beb51a0e59e9

    MySQL的底层架构
    https://bbs.huaweicloud.com/blogs/173476

    B+树演示
    https://www.cs.usfca.edu/~galles/visualization/BPlusTree.html

    索引
    https://blog.51cto.com/rickyliyi/478801?xiangguantuijian&01

    主从复制gtid搭建
    https://juejin.cn/post/6854573214719279117

    传统主从复制搭建
    https://segmentfault.com/a/1190000022478293

    mycat实现读写分离
    https://www.cnblogs.com/wuzhenzhao/p/10188973.html

    mysql数据导出导入
    https://blog.csdn.net/fmyzc/article/details/80909854


    MySQL主从复制故障自动切换
    http://www.xknote.com/mysql/60efc24f617cf.html

    MySQL分库分表
    https://database.51cto.com/art/202012/633302.htm