Starting MySQL. ERROR! The server quit without updating PID file (/usr/local/mysql-5.7.31/data/localhost.localdomain.pid).

这个错误通常是由于MySQL进程启动失败引起的。有几种可能的原因：

1. MySQL无法访问其数据目录。请确保MySQL用户对数据目录有适当的权限。

2. 数据目录中存在损坏的文件。您可以尝试修复这些文件或将它们删除并从备份中还原。

3. MySQL配置文件中可能存在错误，例如无效的参数或语法错误。请检查配置文件并确保它是正确的。

您可以尝试通过以下步骤解决此问题：

1. 检查MySQL数据目录的权限，确保MySQL用户具有读写权限。

2. 检查MySQL配置文件中是否存在错误，尤其是在任何新更改后。

3. 检查MySQL错误日志以获取更多信息，通常位于数据目录下的.err文件中。

4. 尝试重新安装MySQL或使用MySQL官方提供的修复工具来修复损坏的文件。

希望这些建议能帮助您解决问题。

相关问题

Starting MySQL... ERROR! The server quit without updating PID file (/usr/local/mysql/data/localhost.localdomain.pid).

Starting MySQL... ERROR! The server quit without updating PID file (/usr/local/mysql/data/localhost.localdomain.pid)通常意味着MySQL在启动过程中遇到了问题，并且没有能够正确更新PID文件。根据引用提到的可能性，这个问题可能是由于MySQL用户没有权限修改数据目录所导致的。解决这个问题的方法是给予MySQL用户相应的权限，可以使用"chown -R mysql.mysql /usr/local/mysql/data"命令来修改数据目录的权限。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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Starting MySQL. ERROR! The server quit without updating PID file (/usr/local/jianglin/mysql-5.7.26/data/localhost.localdomain.pid).

The error message you received indicates that MySQL server was unable to start properly due to an issue with updating the PID (Process ID) file. This file is used to track the running process of the MySQL server.

To troubleshoot this issue, you can try the following steps:

1. Check the file permissions: Ensure that the user running the MySQL server has proper permissions to read and write to the PID file directory. You can use the `ls -l` command to check the permissions.

2. Verify the directory path: Make sure that the directory path mentioned in the error message (`/usr/local/jianglin/mysql-5.7.26/data/`) exists and is correct. If not, you may need to update the MySQL configuration file (`my.cnf`) with the correct path.

3. Remove the PID file: If the PID file exists, remove it manually and then try starting MySQL again. You can use the following command to remove the PID file:

   sudo rm /usr/local/jianglin/mysql-5.7.26/data/localhost.localdomain.pid

4. Check for any other running instances: Ensure that there are no other instances of MySQL already running on the system. You can use the `ps -ef | grep mysql` command to check if there are any MySQL processes running, and kill them if necessary.

5. Review MySQL error logs: Check the MySQL error logs (usually located in `/var/log/mysql/` or specified in `my.cnf`) for any additional information about the error. The logs can provide more insights into the cause of the issue.

If none of the above steps resolve the problem, please provide more details about your MySQL setup, any recent changes made, and any relevant log entries for further assistance.