InnoDB: auto-extending data file ./ibdata1 is of a different size 0 pages (rounded down to MB) than

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本文记录了在使用mysql_install_db脚本安装MySQL系统表时遇到的错误，并提供了详细的错误信息及解决方案。主要问题是InnoDB系统表空间文件ibdata1的大小与配置文件中指定的不一致。

报错详情

[mysql@infoplat5-zww:~]$/usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
Installing MySQL system tables...2018-05-18 10:56:18 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2018-05-18 10:56:18 0 [Note] Ignoring --secure-file-priv value as server is running with --bootstrap.
2018-05-18 10:56:18 0 [Note] /usr/local/mysql/bin/mysqld (mysqld 5.6.35) starting as process 26051 ...
2018-05-18 10:56:18 26051 [Warning] Buffered warning: Changed limits: max_open_files: 1024 (requested 5000)

2018-05-18 10:56:18 26051 [Warning] Buffered warning: Changed limits: table_open_cache: 431 (requested 2000)

2018-05-18 10:56:18 26051 [Note] InnoDB: Using atomics to ref count buffer pool pages
2018-05-18 10:56:18 26051 [Note] InnoDB: The InnoDB memory heap is disabled
2018-05-18 10:56:18 26051 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2018-05-18 10:56:18 26051 [Note] InnoDB: Memory barrier is not used
2018-05-18 10:56:18 26051 [Note] InnoDB: Compressed tables use zlib 1.2.3
2018-05-18 10:56:18 26051 [Note] InnoDB: Using Linux native AIO
2018-05-18 10:56:18 26051 [Note] InnoDB: Using CPU crc32 instructions
2018-05-18 10:56:18 26051 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2018-05-18 10:56:19 26051 [Note] InnoDB: Completed initialization of buffer pool
2018-05-18 10:56:19 26051 [ERROR] InnoDB: auto-extending data file ./ibdata1 is of a different size 0 pages (rounded down to MB) than specified in the .cnf file: initial 768 pages, max 0 (relevant if non-zero) pages!
2018-05-18 10:56:19 26051 [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!
2018-05-18 10:56:19 26051 [ERROR] Plugin 'InnoDB' init function returned error.
2018-05-18 10:56:19 26051 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2018-05-18 10:56:19 26051 [ERROR] Unknown/unsupported storage engine: InnoDB
2018-05-18 10:56:19 26051 [ERROR] Aborting
2018-05-18 10:56:19 26051 [Note] Binlog end
2018-05-18 10:56:19 26051 [Note] /usr/local/mysql/bin/mysqld: Shutdown complete

解决方法

在mysqld块内添加/etc/my.cnf文件中的以下行。然后重试，就好了

innodb_data_file_path = ibdata1:10M:autoexten