eZ Publish sessions are handled by the Symfony stack, through session handlers. As en example, in order to store your session data in a database, you may use the PdoSessionHandler:
framework:
session:
# ...
handler_id: session.handler.pdo
parameters:
pdo.db_options:
db_table: session
db_id_col: session_id
db_data_col: session_value
db_time_col: session_time
services:
pdo:
class: PDO
arguments:
dsn: "mysql:dbname=<mysql_database>"
user: <mysql_user>
password: <mysql_password>
session.handler.pdo:
class: Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionHandler
arguments: ["@pdo", "%pdo.db_options%"]
For more information on this and other included handlers, or information on developing your own, please check the online Symfony documentation.
To configure sessions in your eZ Publish 5 setup, look to the documentation of Symfony HTTP Fundation component.