这是我进行此安装的第二个实例，但它没有按预期工作......
dnf -y localinstall mysql80-community-release-el9-5.noarch.rpm
我安装了 mysql80-community-release-el9-5.noarch.rpm 然后我不太记得了，但我想我此时能够安装 mysql-community-devel 。
这是我在文档中写的命令：
dnf install mysql-community-devel.x86_64
我的第一个实例工作正常，但是......
在我的第二个例子中......
安装 mysql80-community-release-el9-5.noarch.rpm 然后尝试安装 mysql-community-devel 以错误结束。
在第二个实例上安装 mysql80-community-release-el9-5.noarch.rpm：
dnf -y localinstall mysql80-community-release-el9-5.noarch.rpm
Updating Subscription Management repositories.
Red Hat Enterprise Linux 9 for x86_64 - AppStr 196 kB/s | 4.5 kB 00:00
Red Hat Enterprise Linux 9 for x86_64 - BaseOS 187 kB/s | 4.1 kB 00:00
Extra Packages for Enterprise Linux 9 - x86_64 159 kB/s | 2.3 kB 00:00
Dependencies resolved.
===============================================================================
Package Arch Version Repository Size
===============================================================================
Installing:
mysql80-community-release noarch el9-5 @commandline 13 k
Transaction Summary
===============================================================================
Install 1 Package
Total size: 13 k
Installed size: 12 k
Downloading Packages:
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : mysql80-community-release-el9-5.noarch 1/1
Verifying : mysql80-community-release-el9-5.noarch 1/1
Installed products updated.
Errors during downloading metadata for repository 'mysql80-community':
- Curl error (56): Failure when receiving data from the peer for http://repo.mysql.com/yum/mysql-8.0-community/el/9/x86_64/repodata/repomd.xml [Recv failure: Connection reset by peer]
Installed:
mysql80-community-release-el9-5.noarch
Complete!
在第二个实例上尝试 mysql-community-devel：
dnf install mysql-community-devel.x86_64
Updating Subscription Management repositories.
MySQL 8.0 Community Server 0.0 B/s | 0 B 00:00
Errors during downloading metadata for repository 'mysql80-community':
- Curl error (56): Failure when receiving data from the peer for http://repo.mysql.com/yum/mysql-8.0-community/el/9/x86_64/repodata/repomd.xml [Recv failure: Connection reset by peer]
Error: Failed to download metadata for repo 'mysql80-community': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
我想我也尝试了尽可能多的 mysql-devel 名称变体。
我已经在这个问题上停留了一段时间，过了一段时间，我设法发现与第一个实例相比，我在第二个实例上缺少 mysql-community-devel 包。
我尝试查找用户命令的日志，但无法找到任何有用的日志或历史记录。
我错过了什么......？
更新：我尝试下载mysql-community-devel-8.3.0-1.el9.x86_64.rpm
并安装它，但遇到类似的问题......
dnf -y localinstall mysql-community-devel-8.3.0-1.el9.x86_64.rpm
Updating Subscription Management repositories.
MySQL 8.0 Community Server 0.0 B/s | 0 B 00:00
Errors during downloading metadata for repository 'mysql80-community':
- Curl error (56): Failure when receiving data from the peer for http://repo.mysql.com/yum/mysql-8.0-community/el/9/x86_64/repodata/repomd.xml [Recv failure: Connection reset by peer]
Error: Failed to download metadata for repo 'mysql80-community': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
我期望它在本地查找mysql80-community而不是通过互联网，因为mysql80-community已经通过安装mysql80-community-release-el9-5.noarch.rpm
dnf repolist enabled | grep mysql
mysql-connectors-community MySQL Connectors Community
mysql-tools-community MySQL Tools Community
mysql80-community MySQL 8.0 Community Server
答案1
显然，您的网络连接repo.mysql.com并不完全稳定：某些东西时不时地中断与它的连接。
可能是您运气不好，在他们更新服务器或进行其他维护时尝试连接repo.mysql.com，或者您的系统和服务器之间的路径中的某些内容导致连接中断。
您可能会尝试sudo traceroute -T -p 80 repo.mysql.com找出连接断开的位置。如果故障似乎出现在前三跳左右，并且您的系统位于家庭/小型企业中，您可以尝试重置路由器/调制解调器。如果故障距离较远，或者您尝试安装 MySQL 的系统是云服务，那么您可能需要查看您的互联网服务提供商/云提供商是否发布了故障/中断通知。