I am using Drupal 7. I want to sync my Drupal website roles on 2 websites on the same top level domain, as in, one is example.com, the other is other.example.com, how can i achieve this? Bakery module does not seem to share user roles, and i want to avoid sharing databases across my sites since it works but not recommended.
Basically, i want to reduce loading time on my main site and push my payment system (which contains many modules) to a new Drupal install so that when the payment is made on the slave site, the user role is updated on the slave site which is in turn captured on the main site. How can i achieve this?