【已完成】宝塔mysql忽然错误

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面板、插件版本：宝塔免费版8.0.5 企业级 堡塔企业级防篡改 - 重构版 mysql5.7.26

系统版本：系统：CentOS 7

问题描述：mysql无法启动

相关截图（日志、错误）：

2024-02-03T12:19:42.651010Z 0 [ERROR] InnoDB: Could not find a valid tablespace file for `elementor_panyou/wp_revslider_layer_animations`. Please refer to http://dev.mysql.com/doc/refman/5.7/en/innodb-troubleshooting-datadict.html for how to resolve the issue.
2024-02-03T12:19:42.651014Z 0 [Warning] InnoDB: Ignoring tablespace `elementor_panyou/wp_revslider_layer_animations` because it could not be opened.
2024-02-03T12:19:42.651024Z 0 [ERROR] InnoDB: Operating system error number 2 in a file operation.
2024-02-03T12:19:42.651028Z 0 [ERROR] InnoDB: The error means the system cannot find the path specified.
2024-02-03T12:19:42.651032Z 0 [ERROR] InnoDB: If you are installing InnoDB, remember that you must create directories yourself, InnoDB does not create them.
2024-02-03T12:19:42.651036Z 0 [ERROR] InnoDB: Cannot open datafile for read-only: ＇./elementor_panyou/wp_revslider_layer_animations_bkp.ibd＇ OS error: 71
2024-02-03T12:19:42.651040Z 0 [ERROR] InnoDB: Operating system error number 2 in a file operation.
2024-02-03T12:19:42.651043Z 0 [ERROR] InnoDB: The error means the system cannot find the path specified.
2024-02-03T12:19:42.651047Z 0 [ERROR] InnoDB: If you are installing InnoDB, remember that you must create directories yourself, InnoDB does not create them.
2024-02-03T12:19:42.651051Z 0 [ERROR] InnoDB: Could not find a valid tablespace file for `elementor_panyou/wp_revslider_layer_animations_bkp`. Please refer to http://dev.mysql.com/doc/refman/5.7/en/innodb-troubleshooting-datadict.html for how to resolve the issue.
2024-02-03T12:19:42.651056Z 0 [Warning] InnoDB: Ignoring tablespace

2024-02-03T12:24:10.799503Z 0 [Note] InnoDB: Completed initialization of buffer pool
2024-02-03T12:24:10.802759Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2024-02-03T12:24:10.814108Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2024-02-03T12:24:10.817911Z 0 [Note] InnoDB: Log scan progressed past the checkpoint lsn 51583026719
2024-02-03T12:24:10.942941Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 51588269568
2024-02-03T12:24:11.109354Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 51593512448
2024-02-03T12:24:11.213189Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 51598755328
2024-02-03T12:24:11.215473Z 0 [Note] InnoDB: Doing recovery: scanned up to log sequence number 51598999864
2024-02-03T12:24:11.215881Z 0 [Note] InnoDB: Database was not shutdown normally!
2024-02-03T12:24:11.215894Z 0 [Note] InnoDB: Starting crash recovery.

宝塔用户_hwbyjh 发表于 2024-2-3 20:24
2024-02-03T12:24:10.799503Z 0 [Note] InnoDB: Completed initialization of buffer pool
2024-02-03T12:2 ...

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检查文件路径： 错误消息中提到 "The error means the system cannot find the path specified"，这可能是因为MySQL无法找到表空间文件的正确路径。确保这些文件实际存在于数据库数据目录中，并且路径设置正确。您可以检查my.cnf配置文件中的datadir选项来确定数据目录的位置。

权限问题： 确保MySQL用户具有访问数据目录和表空间文件的适当权限。确保数据库文件的权限设置正确，以便MySQL用户可以读取和写入这些文件。

InnoDB数据字典问题： 错误消息还提到了 "Could not find a valid tablespace file"，这可能与InnoDB数据字典文件有关。您可以尝试使用以下命令来修复可能的数据字典问题：

1. mysqlcheck -u root -p --all-databases --check --fix-dbnames --fix-tables

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这将尝试修复所有数据库中可能的问题。

备份和恢复： 如果修复数据字典问题没有解决问题，您可以尝试备份受影响的表并尝试恢复它们。首先备份表：

1. mysqldump -u root -p your_database_name your_table_name > table_backup.sql

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然后尝试删除受影响的表并重新创建它们：

DROP TABLE your_table_name;
最后，从备份文件中恢复数据：

1. mysql -u root -p your_database_name < table_backup.sql

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