MySQL启动时出现InnoDB错误

在启动MySQL时，我发现以下InnoDB错误

mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql [Warning] '--skip-locking' is deprecated and will be removed in a future release. Please use '--skip-external-locking' instead. [Warning] 'record_buffer' is deprecated and will be removed in a future release. Please use 'read_buffer_size' instead. [Note] Plugin 'FEDERATED' is disabled. InnoDB: Initializing buffer pool, size = 8.0M InnoDB: Completed initialization of buffer pool log file ./ib_logfile0 is of different size 0 503316480 bytes InnoDB: than specified in the .cnf file 0 5242880 bytes! [ERROR] Plugin 'InnoDB' init function returned error. [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. [Note] Event Scheduler: Loaded 0 events [Note] /usr/sbin/mysqld: ready for connections. Version: '5.1.73' socket: '/var/lib/mysql/mysql.sock' port: 12485 MySQL Community Server (GPL) [Note] /usr/sbin/mysqld: Normal shutdown

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它不会启动，因为您更改了innodb日志文件的大小，或者在本例中；您对它进行了注释，MySQL现在使用默认值

log file ./ib_logfile0 is of different size 0 503316480 bytes
InnoDB: than specified in the .cnf file 0 5242880 bytes!

如果您的MySQL数据库中有数据，我建议您通过删除哈希标记将innodb日志文件大小值恢复为原始值：

innodb_log_file_size=503316480

另外，如果你真的有兴趣改变这个设置；要知道这很棘手，因为最终可能会丢失数据。

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如果您真的需要更改此设置，请遵循MySQL.com上的以下指南：

i hame超过200个sql数据库。请解释更多请帮助我，我真的很可怜。出于数据完整性的原因，SQL不会让您动态更改该设置。如果将innodb_log_file_大小设置恢复为其原始值，则不会丢失任何数据。现在，我在阅读问题时遇到了另一个问题-您可能发生了崩溃或硬件故障。不幸的是，我从未尝试过InnoDB恢复。我只知道它是手动的，您需要重新创建每个损坏的表。看见

innodb_log_file_size=503316480