MySQL 8.0 Reference Manual
MySQL 8.0 Release Notes
Restoring a parallel backup in parallel requires an ndb_restore binary from an NDB 8.0 distribution. The process is not substantially different from that outlined in the general usage section under the description of the ndb_restore program, and consists of executing ndb_restore twice, similarly to what is shown here:
$> ndb_restore -n 1 -b 1 -m --backup-path=path/to/backup_dir/BACKUP/BACKUP-backup_id
$> ndb_restore -n 1 -b 1 -r --backup-path=path/to/backup_dir/BACKUP/BACKUP-backup_id
backup_id is the ID of the backup
to be restored. In the general case, no additional special
arguments are required; ndb_restore
always checks for the existence of parallel subdirectories
under the directory indicated by the
--backup-path option and
restores the metadata (serially) and then the table data (in
parallel).