SET GLOBAL max_allowed_packet doesn't work

Question

I found out how to change the default value of max_allowed_packet in MySQL using SET GLOBAL. However, each time I used this command, the default va

Answer 1

For those with a MariaDb configuration the problem could be that the max_allowed_packet variable is overwritten by a configuration file called later.

In my case I tried to import a database and the server answered me: ERROR 2006 (HY000) at line 736: MySQL server has gone away

I discovered that the file:

/etc/mysql/mariadb.conf.d/50-server.cnf

is called later

/etc/mysql/conf.d/mysql.cnf

I tried continuously changing in the "mysql.cnf" file but the value was overwritten in "50-server.cnf".

So the solution is to enter the file

/etc/mysql/mariadb.conf.d/50-server.cnf

and instead of "max_allowed_packet = 16M" put the desired value as an example "max_allowed_packet = 64M"