下面一起来了解下MYSQL数据库初始化时经常遇到的一些问题，相信大家看完肯定会受益匪浅，文字在精不在多，希望MYSQL数据库初始化时经常遇到的一些问题这篇短内容是你想要的。

创新互联建站专注于企业营销型网站、网站重做改版、港北网站定制设计、自适应品牌网站建设、HTML5建站、商城开发、集团公司官网建设、外贸网站制作、高端网站制作、响应式网页设计等建站业务，价格优惠性价比高，为港北等各大城市提供网站开发制作服务。

初始化MYSQL数据库的时候提示缺少perl和data::dumper

这个时候需要安装两个包，

yum install perl

yum install autoconf

初始化MYSQL数据库的时候提示innodb数据库文件大小错误

2018-08-28 18:01:51 26794 [ERROR] InnoDB: auto-extending data file ./ibdata1 is of a different size 768 pages (rounded down to MB) than specified in the .cnf file: initial 131072 pages, max 0 (relevant if non-zero) pages!
2018-08-28 18:01:51 26794 [ERROR] InnoDB: Could not open or create the system tablespace. If you tried to add new data files to the system tablespace, and it failed here, you should now edit innodb_data_file_path in my.cnf back to what it was, and remove the new ibdata files InnoDB created in this failed attempt. InnoDB only wrote those files full of zeros, but did not yet use them in any way. But be careful: do not remove old data files which contain your precious data!
2018-08-28 18:01:51 26794 [ERROR] Plugin 'InnoDB' init function returned error.
2018-08-28 18:01:51 26794 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2018-08-28 18:01:51 26794 [ERROR] Unknown/unsupported storage engine: InnoDB
2018-08-28 18:01:51 26794 [ERROR] Aborting

这是因为系统中有其他my.cnf文件。只要初始化的时候指定初始化文件my.cnf，就可以了。

 /opt/mysql/scripts/mysql_install_db --datadir=/data/mysqldata/3306/data --basedir=/opt/mysql --defaults-file='/data/mysqldata/3306/my.cnf' 
Installing MySQL system tables...2018-08-28 18:04:30 0 [Note] /opt/mysql/bin/mysqld (mysqld 5.6.31-log) starting as process 26865 ...

OK

Filling help tables...2018-08-28 18:05:03 0 [Note] /opt/mysql/bin/mysqld (mysqld 5.6.31-log) starting as process 26889 ...
OK

To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:

  /opt/mysql/bin/mysqladmin -u root password 'new-password'
  /opt/mysql/bin/mysqladmin -u root -h mysql01 password 'new-password'

Alternatively you can run:

  /opt/mysql/bin/mysql_secure_installation

which will also give you the option of removing the test
databases and anonymous user created by default.  This is
strongly recommended for production servers.

See the manual for more instructions.

You can start the MySQL daemon with:

  cd . ; /opt/mysql/bin/mysqld_safe &

You can test the MySQL daemon with mysql-test-run.pl

  cd mysql-test ; perl mysql-test-run.pl

Please report any problems at http://bugs.mysql.com/

The latest information about MySQL is available on the web at

  http://www.mysql.com

Support MySQL by buying support/licenses at http://shop.mysql.com

WARNING: Found existing config file /opt/mysql/my.cnf on the system.
Because this file might be in use, it was not replaced,
but was used in bootstrap (unless you used --defaults-file)
and when you later start the server.
The new default config file was created as /opt/mysql/my-new.cnf,
please compare it with your file and take the changes you need.

WARNING: Default config file /etc/my.cnf exists on the system
This file will be read by default by the MySQL server
If you do not want to use this, either remove it, or use the
--defaults-file argument to mysqld_safe when starting the server
看完MYSQL数据库初始化时经常遇到的一些问题总结这篇文章后，很多读者朋友肯定会想要了解更多的相关内容，如需获取更多的行业信息，可以关注我们的行业资讯栏目。

另外有需要云服务器可以了解下创新互联cdcxhl.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。

网页标题：MYSQL数据库初始化时经常遇到的一些问题总结-创新互联
网址分享：http://lszwz.com/article/dodhss.html