Drupal Frequently Asked Questions (FAQ)

How can I import configuration on production?

If you don't want to do so manually, include the following lines in your deploy hook in .platformsh.app.yaml:

drush -y updatedb
drush -y config-import

That will automatically run update.php and import configuration on every new deploy.

The above configuration is included by default if you used our Drupal 8 example repository or created a project through the UI.

I'm getting a PDO Exception 'MySQL server has gone away'

Normally, this means there is a problem with the MySQL server container and you may need to increase the storage available to MySQL to resolve the issue. Ballooning MySQL storage can be caused by a number of items:

1) A large number of watchdog entries being captured. Fix the errors being generated or disable database logging. 2) Cron should run at regular intervals to ensure cache tables get cleared out.

Why do I get "MySQL cannot connect to the database server"?

If you are having a problem connecting to the database server, you will need force a re-deployment of the database container. To do so, you can edit the service definition to add or remove a small amount of storage and then push.

For Drupal sites, the name of the session cookie is based on a hash of the domain name. This means that it will actually be consistent for a specific website and can safely be used as a fixed value.