update

content/post/mysql-backup.md

@@ -145,6 +145,8 @@ GRANT SELECT, RELOAD, PROCESS, REPLICATION CLIENT ON *.* TO backup@localhost;
     chown -R mysql:mysql /var/lib/mysql
     ```
 
+---
+
 ## mysqlsh
 ### 环境
 - mysql 8.4
@@ -158,11 +160,10 @@ GRANT SELECT, RELOAD, PROCESS, REPLICATION CLIENT ON *.* TO backup@localhost;
     ```
 
 ### 创建备份用户
-- 创建备份用户
-    ```sql
-    CREATE USER shell@'%' IDENTIFIED BY 'Shell_1234';
-    GRANT PROCESS, RELOAD, LOCK TABLES ON *.* TO shell@localhost;
-    ```
+```sql
+CREATE USER shell@'%' IDENTIFIED BY 'Shell_1234';
+GRANT PROCESS, RELOAD, LOCK TABLES ON *.* TO shell@localhost;
+```
 
 ### 备份命令
 - 简化 msyql-shell 命令
@@ -204,6 +205,7 @@ GRANT SELECT, RELOAD, PROCESS, REPLICATION CLIENT ON *.* TO backup@localhost;
     ```
 
 ## 参考
+- https://docs.percona.com/percona-xtrabackup/8.4/index.html
 - https://mp.weixin.qq.com/s/RC6MykrGbZ850xh3AOjrtw
 - https://swmlee.com/2020/06/18/technicalessays/mariadbseries/08mariadb-dump-backup/