MySQL数据库无法启动，错误日志:InnoDB: Database page corruption on disk or a failed解决办法

系统环境：
CENTOS7, XAMPP

找到日志位置：
/opt/lampp/var/mysql/instance-7srte5br.err

错误日志如下：

2018-12-16 11:22:22 140123038402368 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2018-12-16 11:22:22 140123038402368 [Note] InnoDB: The InnoDB memory heap is disabled
2018-12-16 11:22:22 140123038402368 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2018-12-16 11:22:22 140123038402368 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier
2018-12-16 11:22:22 140123038402368 [Note] InnoDB: Compressed tables use zlib 1.2.8
2018-12-16 11:22:22 140123038402368 [Note] InnoDB: Using SSE crc32 instructions
2018-12-16 11:22:22 140123038402368 [Note] InnoDB: Initializing buffer pool, size = 32.0M
2018-12-16 11:22:22 140123038402368 [Note] InnoDB: Completed initialization of buffer pool
2018-12-16 11:22:22 140123038402368 [Note] InnoDB: Log sequence number at the start 365785282 and the end 365785262 do not match.
2018-12-16 11:22:22 140123038402368 [ERROR] InnoDB: Database page corruption on disk or a failed file read of tablespace /opt/lampp/var/mysql/ibdata1 page  [page id: space=0, page number=5]. You may have to recover from a backup.
2018-12-16 11:22:22 7f70efedc740 InnoDB: Page dump in ascii and hex (16384 bytes):
len 16384; hex a0a936d600000005000000000000000000000000

解决办法：
在MySQL配置/opt/lampp/etc/my.cnf里加入如下一行：

innodb_force_recovery=1

其他参数介绍：
Mode 1当遇到损坏页时，不使 MySQL 崩溃
Mode 2不运行后台操作
Mode 3不会尝试回滚事务
Mode 4不计算统计数据或应用存储/缓冲的变化
Mode 5在启动过程中不查看撤消日志
Mode 6在启动时不从重做日志（ib_logfiles）前滚

因为被破坏的地方只在索引的部分，所以当使用innodb_force_recovery = 1运行InnoDB时，操作如下：

#执行check，repair table 都无效
alter table yourtablue engine =myisam; #也报错了，因为模式是innodb_force_recovery =1。
ERROR 1025 (HY000): Error on rename of '...' to '....' (errno: -1)

#建立一张表：
create table yourtablue  #和原表结构一样，只是把INNODB改成了MYISAM。

#把数据导进去
insert into yourtablue_bak select * from email_status;

#删除掉原表：
drop table yourtablue;

#注释掉innodb_force_recovery 之后，重启。
#重命名：
rename table yourtablue_bak to yourtablue;

#最后该回存储引擎
alter table yourtablue engine = innodb

最后提醒：
为了让此类似问题不在出现，记得常常备份数据库