way to change max_allowed_packet

mysql> show variables like 'max%' ;

+-----------------------+------------+
| Variable_name         | Value      |
+-----------------------+------------+
| max_allowed_packet    | 1048576    |
...

mysql> set max_allowed_packet = 1500000;
Query OK, 0 rows affected (0.03 sec)

mysql> show variables like 'max%' ;
+-----------------------+------------+
| Variable_name         | Value      |
+-----------------------+------------+
| max_allowed_packet    | 1499136    |
...