Plugin ‘InnoDB’ registration as a STORAGE ENGINE failed解决方法 Plugin ‘InnoDB’ regi

原先一台数据库未安装Innodb引擎，今天动态增加他，发现innodb加载不了，报错Plugin ‘InnoDB’ registration as a STORAGE ENGINE failed，从详细日志里面发现创建log file创建失败。详细日志如下：

InnoDB: If this error appears when you are creating an InnoDB database,
InnoDB: the problem may be that during an earlier attempt you managed
InnoDB: to create the InnoDB data files, but log file creation failed.
InnoDB: If that is the case, please refer to
InnoDB: http://dev.mysql.com/doc/refman/5.1/en/error-creating-innodb.html
131017  0:45:52 [ERROR] Plugin 'InnoDB' init function returned error.
131017  0:45:52 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.

 其实之前这台服务器有加载过innodb，后来卸掉了，但是logfile文件没有删除，导致从新加载的时候出现这个问题。解决方法很简单

rm -rf ib_logfile*

 然后重新动态加载一次innodb即可，如果不行，那么重启一下mysql.