https://repo.mysql.com/RPM-GPG-KEY-mysql-57: import read failed

As an AI language model, I cannot perform actions on the system. However, the error message you provided usually indicates that there is an issue with importing the GPG key for the MySQL 5.7 repository.

You can try the following steps to resolve the issue:

1. Check if the repository is added correctly to your system. You can do this by running the following command:

   yum repolist all | grep mysql

This command will list all repositories that contain the word "mysql". Make sure that you have added the correct repository.

2. Check if you have the necessary dependencies installed. You can do this by running the following command:

   yum install gnupg2

This command will install the required package for importing GPG keys.

3. Import the GPG key manually. You can do this by running the following command:

   rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-57

This command will download and import the GPG key for the MySQL 5.7 repository.

If these steps do not resolve the issue, you may need to contact the support team for the MySQL repository.