MySQL Enterprise Backup 8.0 User's Guide  /  ...  /  Options for Working with Encrypted InnoDB Tablespaces and Encrypted Binary/Relay Logs

18.14 Options for Working with Encrypted InnoDB Tablespaces and Encrypted Binary/Relay Logs

MySQL Enterprise Backup supports encrypted InnoDB tablespaces and, for release 8.0.14 and later, encrypted binary/relay logs. For details on how MySQL Server encrypts and decrypts these items, see InnoDB Data-at-Rest Encryption and Encrypting Binary Log Files and Relay Log Files . See Chapter 6, Working with Encrypted InnoDB Tablespaces and Section 8.4, “Working with Encrypted Binary and Relay Logs” on how mysqlbackup commands handle these encrypted items.

The following is the command-line option for working with encrypted InnoDB tables and binary/relay logs:

  • --encrypt-password[=STRING]

    Property Value
    Command-Line Format --encrypt-password=STRING
    Type String

    The user-supplied password by which mysqlbackup encrypts the master encryption key, which is used to encrypt the encryption keys for the InnoDB tablespaces or binary/relay log files.

    The option must be used when backing up a server that has a keyring plugin enabled for InnoDB table or binary/relay log encryption and for restoring a backup containing encrypted InnoDB tables or binary/relay log. If the server is using the keyring_encrypted_file plugin, the password supplied with the option must match the value of the system variable keyring_encrypted_file_password on the server.

    The same password supplied during backup must be supplied again during a copy-back-and-apply-log, apply-log, or an apply-incremental-backup operation for the backup, or mysqlbackup will error out when it encounters encrypted InnoDB tables or binary/relay logs during the operation. If different passwords were used for different backups in a sequence of full and incremental backups, make sure the very password used to create an individual backup is supplied when performing an apply-log, apply-incremental-backup, or copy-back-and-apply-log operation on it.

    Users who do not want to supply the password on the command line or in a default file may use the option without specifying any value; mysqlbackup then asks the user to type in the password before the operation starts.