MySQL Plugin ' InnoDB ' init function returned error

. . In the MySQL configuration file, set Default-table-type=innodb, found that MySQL does not start properly, the error log gives the following information:

150210 18:11:19 mysqld_safe mysqld from PID File/data/mysqldata/mysql.pid ended
150210 18:15:20 Mysqld_safe starting mysqld daemon with databases From/data/mysqldata
150210 18:15:20 innodb:the InnoDB memory heap is disabled
150210 18:15:20 innodb:mutexes and rw_locks use GCC atomic builtins
150210 18:15:20 innodb:compressed tables use zlib 1.2.3
150210 18:15:20 innodb:initializing buffer pool, size = 128.0M
150210 18:15:20 innodb:completed initialization of buffer pool
150210 18:15:20 innodb:highest Supported file format is Barracuda.
Innodb:no valid checkpoint found.
Innodb:if This error appears if you were creating an InnoDB database,
Innodb:the problem may be, during an earlier attempt you managed
Innodb:to Create the InnoDB data files, but log file creation failed.
Innodb:if that's the case, please refer to
Innodb:http://dev.mysql.com/doc/refman/5.5/en/error-creating-innodb.html
150210 18:15:20 [ERROR] Plugin ' InnoDB ' init function returned ERROR.
150210 18:15:20 [ERROR] Plugin ' InnoDB ' registration as a STORAGE ENGINE failed.
150210 18:15:20 [ERROR] unknown/unsupported storage Engine:innodb
150210 18:15:20 [ERROR] Aborting

After the search on the Internet, just delete the MySQL directory Ib_logfile0 and Ib_logfile1 and ibdata1 can be, only delete the first two or not, you have to delete it, I test the time is this

MySQL Plugin ' InnoDB ' init function returned error