MariaDB (10.3)
It may have taken awhile but here we are.
Buster at least includes mysqltuner, which is a useful guide program to watch for issues.
After installing mariadb be sure to
systemctl stop mariadb chown mysql:mysql /innodb/ chmod 0750 /innodb usermod -a -G hugepager mysql
And either
mv /var/lib/mysql/ibdata1 /innodb/
or remove it entirely if you are on a virgin installation.
Replace /innodb/ or ignore as necessary.
If you are changing the size of the ib_logfiles, you will want to first remove them:
rm /var/lib/mysql/ib_logfile0 /var/lib/mysql/ib_logfile1
cp /etc/mysql/mariadb.conf.d/50-server.cnf /etc/mysql/mariadb.conf.d/99-server.cnf
To make your override file.
max_allowed_packet
Add
max_allowed_packet = 32M
Or whatever you need to all relevant files. If you end up running extremely large queries you may need to increase this. I mostly set it as a note to increase it later, as necessary. 32MB is already the default in some instances.
To [client] in /etc/mysql/mariadb.conf.d/50-client.cnf
To [mysql] and [mysqldump] in /etc/mysql/mariadb.conf.d/50-mysql-clients.cnf
The legacy mysql configuration files look like so:
/etc/mysql/conf.d/mysqldump.cnf
[mysqldump] quick quote-names max_allowed_packet = 32M
/etc/mysql/conf.d/mysqldump.cnf
[mysql] max_allowed_packet = 32M