1、停止mysql服务

# /etc/init.d/mysqld stop

2、备份my.cnf

cd /etc

cp my.cnf my.cnf_bak

3、修改my.cnf

[mysqld] 后加入

# vi my.cnf

default-storage-engine=InnoDB

4、删除/mysql/data目录下的ib_logfile0，ib_logfile1

否则在启动mysql时会遇到下述错误：

[ERROR] Plugin 'InnoDB' init function returned error.

[ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.

[ERROR] Unknown/unsupported table type: InnoDB

[ERROR] Aborting

5、启动mysql

# /etc/init.d/mysqld start

Starting MySQL:                                            [  OK  ]

6、登录mysql检查修改是否成功

# mysql -u root -p

 

mysql>show variables like'storage_engine';

+----------------+--------+

| Variable_name  | Value  |

+----------------+--------+

| storage_engine | InnoDB |

+----------------+--------+