springboot+Mycat+Mysql 双主双从记录贴
mysql搭建主从复制(一主一从,双主双从)
https://www.cnblogs.com/lzhdonald/archive/2020/04/13/12689712.html#%E6%90%AD%E5%BB%BA%E5%8F%8C%E4%B8%BB%E5%8F%8C%E4%BB%8E
centos7安装mysql(完整)
https://blog.csdn.net/weixin_45797918/article/details/104929127
boot-mycat
https://github.com/1181888200/boot-mycat