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The AWS region for the keyring_aws  plugin. This variable is unavailable unless that plugin is installed. 

• keyring_encrypted_file_data 

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The path name of the data file used for secure data storage by the keyring_encrypted_file  plugin. This variable is unavailable unless that plugin is installed. The file location should be in a directory considered for use only by keyring plugins. For example, do not locate the file under the data directory. 

Keyring operations are transactional: The keyring_encrypted_file  plugin uses a backup file during write operations to ensure that it can roll back to the original file if an operation fails. The backup file has the same name as the value of the keyring_encrypted_file_data  system variable with a suffix of .backup . 

Do not use the same keyring_encrypted_file  data file for multiple MySQL instances. Each instance should have its own unique data file. 

The default file name is keyring_encrypted , located in a directory that is platform specific and depends on the value of the INSTALL_LAYOUT CMake  option, as shown in the following 

