MySQL Authentication Plugin 'caching_sha2_password' Error: 'cannot open shared object file: No such file or directory' - Solution Guide - 常规

This issue usually occurs because of a version mismatch between the installed MySQL version and the driver used by your application. To fix this, use a compatible MySQL driver version or upgrade your MySQL server.

Here are some possible solutions:

Install a Compatible MySQL Driver Version: Check the version of the MySQL driver your application uses and ensure it's compatible with your MySQL server version. You can find compatible driver versions on the official MySQL website.
Upgrade MySQL Server: If you're using an older MySQL server version, try upgrading to the latest version. Before upgrading, make sure to back up your database in case of any unforeseen issues.
Change MySQL Authentication Plugin: If you can't change the MySQL driver version or upgrade the server, try changing the MySQL authentication plugin. Open the MySQL configuration file (usually my.cnf or my.ini) and set default_authentication_plugin to 'mysql_native_password'. Restart the MySQL server after saving the changes.
Check Plugin File Path: Ensure the plugin file 'caching_sha2_password.so' exists in the /usr/lib64/mysql/plugin/ directory. If the file is missing, try reinstalling the MySQL server or obtain the plugin file from a reliable source.

Remember that these solutions might vary depending on your specific situation. If you still encounter problems, refer to the official MySQL documentation or seek professional support.