(root@localhost) [(none)] 10:46:35> select version();
+---------------------+
| version()           |
+---------------------+
| 10.2.14-MariaDB-log |
+---------------------+
1 row in set (0.00 sec)

(root@localhost) [(none)] 10:46:41> select @@global.innodb_fast_shutdown;
+-------------------------------+
| @@global.innodb_fast_shutdown |
+-------------------------------+
|                             1 |
+-------------------------------+
1 row in set (0.00 sec)

(root@localhost) [(none)] 10:46:55> set global innodb_fast_shutdown=0;
Query OK, 0 rows affected (0.00 sec)

(root@localhost) [(none)] 10:47:04> select @@global.innodb_max_purge_lag_wait;
ERROR 1193 (HY000): Unknown system variable 'innodb_max_purge_lag_wait'
(root@localhost) [(none)] 10:47:40> show global variables like 'innodb%lag%';
+----------------------------+-------+
| Variable_name              | Value |
+----------------------------+-------+
| innodb_max_purge_lag       | 0     |
| innodb_max_purge_lag_delay | 0     |
+----------------------------+-------+
2 rows in set (0.00 sec)

(root@localhost) [(none)] 10:48:01> shutdown;
Query OK, 0 rows affected (0.00 sec)

(root@localhost) [(none)] 10:48:10> quit