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

进入mysql/data/目录 删除所有随机文件(除了实际的数据库文件夹) 重启Apache和MySQL。

它应该能解决这个问题。

其他回答

在我的情况下,我做了以下步骤,它是有效的:

在Xampp控制面板中,点击右边工具栏中的“服务”按钮 然后在服务列表中找到MySQL 点击它然后在面板左侧点击stop 回到Xampp控制面板,点击开始。

下面是解决这个问题的方法:

打开C:\xampp\mysql\data 您将看到一个名为mysql/data的文件夹 将该文件夹从mysql/data重命名为mysql/data_not_useful任何你想给的名字。 创建一个名为mysql/data的新文件夹。 复制mysql/backup的所有文件,粘贴mysql/data。 现在转到mysql/data_not_useful并从那里复制文件ibdata1。 然后粘贴到mysql/data(你必须替换文件)。 重新启动xampp服务器。 现在运行你的mysql服务器。

为此,您需要单击Modules Services下的x选项,并安装MYSQL服务。然后启动服务。给你。

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

简单的解决方案 从Xampp控制面板打开外壳

mysqld --console --skip-grant-tables --skip-external-locking

然后再次打开另一个shell并运行

mysqlcheck -r --databases mysql --use-frm

现在关闭两个shell并重新启动xampp。