MYSQL8无法启动的解决办法1

MYSQL8无法启动的解决办法

故障现象：在计算机管理的服务里面，mysql无法启动。无法看到任何故障原因。
故障原因：Multiple files found for the same tablespace ID
解决办法：删除data目录下对应数据目录，本文是删除data\MYDATABASE目录。
故障调查过程：
step1：以管理员身份启动DOS，进入MYSQL的bin目录；

E:\mysql-8.0.14-winx64>cd bin
E:\mysql-8.0.14-winx64\bin>mysqld.exe --console

step2: 使用mysql --console查看故障原因。
可以看到：

E:\mysql-8.0.14-winx64\bin>mysqld.exe --console
2020-07-25T03:19:31.313285Z 0 [System] [MY-010116] [Server] E:\mysql-8.0.14-winx64\bin\mysqld.exe (mysqld 8.0.14) starting as process 12576
2020-07-25T03:19:31.315761Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
2020-07-25T03:19:31.372675Z 1 [ERROR] [MY-012209] [InnoDB] Multiple files found for the same tablespace ID:
2020-07-25T03:19:31.372694Z 1 [ERROR] [MY-012202] [InnoDB] Tablespace ID: 117 = ['MYDATABASE\routerconfig.ibd', 'MYDATABASE\imaging.ibd']
2020-07-25T03:19:31.372713Z 1 [ERROR] [MY-012930] [InnoDB] Plugin initialization aborted with error Failed, retry may succeed.
2020-07-25T03:19:31.372744Z 1 [ERROR] [MY-010334] [Server] Failed to initialize DD Storage Engine
2020-07-25T03:19:31.372974Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2020-07-25T03:19:31.408786Z 0 [ERROR] [MY-010119] [Server] Aborting

可以看到故障的主要原因：Multiple files found for the same tablespace ID