重新安装期间无法配置MySQL

问题描述

我在 Windows 10 计算机上拥有的MySQL服务突然停止并拒绝再次启动。我尝试了许多不同的选项来修复它，但是它们都没有用，所以我决定卸载MySQL并重新安装它。

我在卸载之前删除了这些文件夹：

• C：\ Program Files \ MySQL \
• C：\ ProgramData \ MySQL \
• C：\ Users [用户名] \ AppData \ Roaming \
• C：\ Program Files（x86）\ MySQL \

在重新安装期间，我注意到Connector .NET无法安装。

我不确定这是否是问题发生的原因，但是安装程序已多次失败配置的“备份MySQL数据库”步骤。每次运行它时，它都会显示以下错误消息：

Starting MySQL Server in order to run the mysql_upgrade tool.
Warning: There may be some errors thrown by MySQL Server,the mysql_upgrade tool is going to be run next to attempt to fix database incompatibilities.
Starting process for MySQL Server 8.0.21...
Starting process with command: C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqld.exe --port=3306 --datadir="C:\ProgramData\MySQL\MySQL Server 8.0\data" --console...
Process for mysqld,with ID 12424,has been started successfully and is running.
Successfully started process for MySQL Server 8.0.21.
2020-08-19T16:52:16.133223Z 0 [System] [MY-010116] [Server] C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqld.exe (mysqld 8.0.21) starting as process 7612
2020-08-19T16:52:16.251679Z 1 [ERROR] [MY-011011] [Server] Failed to find valid data directory.
2020-08-19T16:52:16.254844Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2020-08-19T16:52:16.255289Z 0 [ERROR] [MY-010119] [Server] Aborting
2020-08-19T16:52:16.261307Z 0 [System] [MY-010910] [Server] C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqld.exe: Shutdown complete (mysqld 8.0.21)  MySQL Community Server - GPL.........................
Running mysqldump tool to backup the database...
Backup files will be dumped to "C:\ProgramData\MySQL\MySQL Server 8.0\Backup\mysql_dump-2020-08-19T12.55.23.sql".

Starting process with command: C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqldump.exe --user=root --default-auth=caching_sha2_password --host=localhost --port=3306 --default-character-set=utf8 --routines --events --single-transaction=TRUE --all-databases --result-file="C:\ProgramData\MySQL\MySQL Server 8.0\Backup\mysql_dump-2020-08-19T12.55.23.sql"...
mysqldump: Got error: 2003: Can't connect to MySQL server on 'localhost' (10061) when trying to connect
Process for mysqldump,with ID 18972,was run successfully and exited with code 2.
Ended configuration step: Backing up MySQL database


Found existing data directory,no need to initialize the database.

我无法跳过配置，因为MySQL仍然没有作为服务出现。

我尝试在C：\ ProgramData \ MySQL \ MySQL Server 8.0 \中手动创建数据文件夹，但这仍然不能解决问题。谁能告诉我为什么我会收到此错误？

解决方法

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