mysql allowed packets in ispconfig3

Hi,
I am running drupal and I am getting an error that says PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: etc...

i was told to increase the maximum allowed packets. however how do i do this in ispconfig? if i try to edit /etc/my.cnf and restart the mysql service it says
160515 20:59:31 mysqld_safe unknown option '--max-allowed-packet=500'

how do i change thsi in ispconfig?

thank you
Ben

 

Did you add something like max_allowed_packet=500M to you my.cnf?

 

yes, i think i fixed this now. i ad to add it to the top part of the my.cnf file right below the [mysqld]. by mistake i added it to the end of the file which was nothing working for the mysql part of the file, somehow adding it at the top, fixed this problem and now i have no issues of PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: etc...