測試驗證恢復到指定的增量備份：
root@debian:/var/lib# mysql -uroot -pleyou test
mysql> show tables;
Empty set (0.00 sec)
進行一個全備：
innobackupex --defaults-file=/etc/mysql/my.cnf --user=root --password=leyou /home/data/backup/full
創建表：
mysql> create table t(id int);
Query OK, 0 rows affected (0.00 sec)
mysql> insert into t values (1),(2),(3);
Query OK, 3 rows affected (0.00 sec)
Records: 3 Duplicates: 0 Warnings: 0
mysql> create table t2 as select * from t;
Query OK, 3 rows affected (0.00 sec)
Records: 3 Duplicates: 0 Warnings: 0
基於全備的增量備份：
innobackupex --defaults-file=/etc/mysql/my.cnf --user=root --password=leyou --incremental /home/data/backup/incr/ --incremental-basedir=/home/data/backup/full/2017-03-07_15-58-18/ --parallel=2
模擬故障，錯誤drop 表 t2：
mysql> drop table t2;
Query OK, 0 rows affected (0.00 sec)
mysql> create table t3 as select * from t;
Query OK, 3 rows affected (0.00 sec)
Records: 3 Duplicates: 0 Warnings: 0
mysql> create table t4 as select * from t;
Query OK, 3 rows affected (0.00 sec)
Records: 3 Duplicates: 0 Warnings: 0
增量備份2正常進行：
innobackupex --defaults-file=/etc/mysql/my.cnf --user=root --password=leyou --incremental /home/data/backup/incr/ --incremental-basedir=/home/data/backup/incr/2017-03-07_16-04-41/ --parallel=2
查看checkpoint信息：
root@debian:/home/data/backup/incr/2017-03-07_16-04-41# cat xtrabackup_checkpoints
backup_type = incremental
from_lsn = 31407802020
to_lsn = 31407817345
last_lsn = 31407817345
compact = 0
root@debian:/home/data/backup/incr/2017-03-07_16-04-41#
root@debian:/home/data/backup/incr/2017-03-07_16-04-41#
root@debian:/home/data/backup/incr/2017-03-07_16-04-41#
root@debian:/home/data/backup/incr/2017-03-07_16-04-41# cd ../2017-03-07_16-06-42/
root@debian:/home/data/backup/incr/2017-03-07_16-06-42#
root@debian:/home/data/backup/incr/2017-03-07_16-06-42# cat xtrabackup_checkpoints
backup_type = incremental
from_lsn = 31407817345
to_lsn = 31407833800
last_lsn = 31407833800
compact = 0
發現剛剛drop t2了，t2是個很重要的表，然後恢復，由於這個操作是在增量備份2之前操作的，因此需要恢復增量備份1。
先恢復full的日誌：
innobackupex --defaults-file=/etc/mysql/my.cnf --apply-log --redo-only /home/data/backup/full/2017-03-07_15-58-18/
將增量備份1應用到完全備份
innobackupex --defaults-file=/etc/mysql/my.cnf --apply-log /home/data/backup/full/2017-03-07_15-58-18/ --incremental-dir=/home/data/backup/incr/2017-03-07_16-04-41/
此時增量備份其實都合併到全備上了,恢復是只需要使用全備進行恢復就可以了
模擬數據故障[關閉數據庫，刪除數據庫的數據目錄，執行如下命令還原]
innobackupex --defaults-file=/etc/mysql/my.cnf --copy-back /home/data/backup/full/2017-03-07_15-58-18/
chown -R mysql:mysql /var/lib/mysql/
啓動數據庫，可以發現在增量備份2之後drop t2， create table t4 、t3 都沒有了，t2已經恢復。
mysql> show tables;
+----------------+
| Tables_in_test |
+----------------+
| t |
| t2 |
+----------------+
2 rows in set (0.00 sec)
mysql>
mysql>