CREATE TABLE t(i INT) ENGINE INNODB;
INSERT INTO t VALUES(1);
# xtrabackup backup
NOT FOUND /InnoDB: Allocated tablespace ID/ in backup.log
INSERT INTO t VALUES(2);
# xtrabackup prepare
# shutdown server
# remove datadir
# xtrabackup move back
# restart server
SELECT * FROM t;
i
1
DROP TABLE t;
#
#  MDEV-27121 mariabackup incompatible with disabled dedicated
#                  undo log tablespaces
#
call mtr.add_suppression("InnoDB: innodb_undo_tablespaces=0 disables dedicated undo log tablespaces");
# xtrabackup backup
# xtrabackup prepare
# shutdown server
# remove datadir
# xtrabackup move back
# restart server
# Display undo log files from target directory
undo001
undo002