重启后日志出现 InnoDB: Operating system error number 5 in a file operation

删除mysql的innodb日志，

启动mysql

出现

InnoDB: Unable to lock /disk2/mysql/innodb/ibdata1, error: 11

InnoDB: Check that you do not already have another mysqld process

InnoDB: using the same InnoDB data or log files.

现在能启动

启动时间很久，启动后数据库没有innodb类型，可以使用show engines查看