当我打开XAMPP并单击启动MySQL按钮时,它给了我一个错误。 我刚才启动了它,但现在它不工作了。

12:19:12 PM [mysql] Attempting to start MySQL app... 12:19:12 PM [mysql] Status change detected: running 12:19:13 PM [mysql] Status change detected: stopped 12:19:13 PM [mysql] Error: MySQL shutdown unexpectedly. 12:19:13 PM [mysql] This may be due to a blocked port, missing dependencies, 12:19:13 PM [mysql] improper privileges, a crash, or a shutdown by another method 12:19:13 PM [mysql] Press the Logs button to view error logs and check 12:19:13 PM [mysql] the Windows Event Viewer for more clues 12:19:13 PM [mysql] If you need more help, copy and post this 12:19:13 PM [mysql] entire log window on the forums

以下是错误日志的内容:

2013-08-02 12:19:12 4536 [Note] Plugin 'FEDERATED' is disabled. 2013-08-02 12:19:12 f64 InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator. 2013-08-02 12:19:12 4536 [Note] InnoDB: The InnoDB memory heap is disabled 2013-08-02 12:19:12 4536 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions 2013-08-02 12:19:12 4536 [Note] InnoDB: Compressed tables use zlib 1.2.3 2013-08-02 12:19:12 4536 [Note] InnoDB: Not using CPU crc32 instructions 2013-08-02 12:19:12 4536 [Note] InnoDB: Initializing buffer pool, size = 16.0M 2013-08-02 12:19:12 4536 [Note] InnoDB: Completed initialization of buffer pool 2013-08-02 12:19:12 4536 [Note] InnoDB: Highest supported file format is Barracuda. 2013-08-02 12:19:12 4536 [Note] InnoDB: The log sequence numbers 0 and 0 in ibdata files do not match the log sequence number 1616798 in the ib_logfiles! 2013-08-02 12:19:12 4536 [Note] InnoDB: Database was not shutdown normally! 2013-08-02 12:19:12 4536 [Note] InnoDB: Starting crash recovery. 2013-08-02 12:19:12 4536 [Note] InnoDB: Reading tablespace information from the .ibd files...

最重要的错误信息在这里:

2013-08-02 12:19:12 4536 [ERROR] InnoDB: 试图打开先前打开的表空间。 以前的表空间mysql/innodb_table_stats在filepath: .\mysql\innodb_table_stats.ibd使用的是空间ID: 1。 在文件路径:.\xat\payments.ibd下无法打开空间ID: 1的表空间xat/payments

日志的其余部分:

InnoDB: Error: could not open single-table tablespace file .\xat\payments.ibd InnoDB: We do not continue the crash recovery, because the table may become InnoDB: corrupt if we cannot apply the log records in the InnoDB log to it. InnoDB: To fix the problem and start mysqld: InnoDB: 1) If there is a permission problem in the file and mysqld cannot InnoDB: open the file, you should modify the permissions. InnoDB: 2) If the table is not needed, or you can restore it from a backup, InnoDB: then you can remove the .ibd file, and InnoDB will do a normal InnoDB: crash recovery and ignore that table. InnoDB: 3) If the file system or the disk is broken, and you cannot remove InnoDB: the .ibd file, you can set innodb_force_recovery > 0 in my.cnf InnoDB: and force InnoDB to continue crash recovery here.

这些错误的原因是什么?我该如何纠正它们?


当前回答

first of all, make a backup file of your database C:\xampp\mysql\data copy this file and past it somewhere in your pc. After this open, the data file and also open the XAMPP server try to delete the files step by step one by one after deleting each file try to run the MySQL server after deleting a single file as shown in the screenshot thus your databases won't delete. if the file deletion does not work then try to copy the same files from the backup folders and repeat this until it works... this is time taking but this worked for me I have solved this in 20 minutes.

其他回答

停!请不要删除ibdata1文件!

删除这个文件就像用数据库玩俄罗斯轮盘赌,它可以工作并重新建立一切,但同时,它也可能使您拥有的所有数据库都无法使用。

相反,首先尝试使用XAMPP附带的MySQL备份文件夹。那么接下来做:

将mysql/data文件夹重命名为mysql/data_old(可以使用任何名称) 创建新文件夹mysql/data 将mysql/backup中的内容复制到新的mysql/data文件夹中 复制mysql/data_old目录下的所有数据库文件夹到mysql/data目录下(跳过data_old目录下的mysql、performance_schema和phpmyadmin文件夹)

最后:

从mysql/data_old中复制ibdata1文件,并将其替换到mysql/data文件夹中 从XAMPP控制面板启动MySQL

我已经通过结束任务管理器上mysqlid的任务解决了这个问题。

first of all, make a backup file of your database C:\xampp\mysql\data copy this file and past it somewhere in your pc. After this open, the data file and also open the XAMPP server try to delete the files step by step one by one after deleting each file try to run the MySQL server after deleting a single file as shown in the screenshot thus your databases won't delete. if the file deletion does not work then try to copy the same files from the backup folders and repeat this until it works... this is time taking but this worked for me I have solved this in 20 minutes.

如果这里列出的解决方案都不适合你和我一样,那么

进入任务管理器。 进入“服务”选项卡。 查找名为“MySQL80”的服务。 右键单击它并选择“stop”。 回到XAMPP控制面板,启动MySQL服务。

这对我很管用。

重要提示:不要删除ibdata1文件。你可以毁掉你所有的数据库。

相反,首先尝试使用XAMPP附带的MySQL备份文件夹。所以接下来的步骤:

将mysql/data文件夹重命名为mysql/data_old 复制mysql/backup文件夹,命名为mysql/data 将所有数据库文件夹从mysql/data_old复制到mysql/data(除了mysql, performance_schema和phpmyadmin文件夹) 将mysql/data_old/ibdata1文件拷贝到mysql/data文件夹中 从XAMPP控制面板启动MySQL

And,瞧!

编辑(2023年1月7日)

正如一些用户所提到的,这是一种紧急解决方案,而不是永久解决方案。在恢复数据后,强烈建议备份它,并重新安装XAMPP,因为失败与XAMPP的一些文件的故障有关,而不是数据库。