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1. A real life study of large scaled personalization with
Drupal for one of the biggest extranets in Europe.
Nicolas LOYE

2. WHO’S TALKING
HELLO WORLD

3. 2 offices, Strasbourg (headquarters) & Paris
Founded 2007
65 web experts
Projects from 50 to 2000 m/d
100% Drupal / Symfony 2
ACTENCY
Who are we ?

4. Drupal-addict since 2006
Worked on Drupal 4.5 to 7
Mainly large scaled projects
Role playing games, heavy
metal.
Nicolas LOYE
Technical project manager / Lead developer

5. BUSINESS
REQUIREMENTS
WHAT WAS THE LEGACY ?

6. B to B extranet for 80K users.
About 50K contents for Alcatel-Lucent
clients.
Latest news for Alcatel-Lucent products
releases and events.
Distributed services (LDAP, Media
hosting, CMS)
THE SCOPE
What’s the existing platform ?

7. How much ?
2013
3.350 visitors per day
13.800 pages visited per day
117 500 unique downloads
Max simultaneous connections : 5470
2012
3.000 visitors per day
13.700 pages visited per day
120 250 unique downloads
Max simultaneous connections : 4850
THE SCOPE

8. Migrating the existing platform to Drupal.
Hosting on Acquia Cloud.
THE SCOPE
Objectives

9. Migrating the business rules and permission system.
Connecting Drupal to multiple services inside the highly
secured Alcaltel-Lucent network.
Improve the performances (some pages > 10 sec pageload)
THE SCOPE
Objectives

10. Security
Business Rules (Profiling)
Migration in phases
Performances
CHALLENGES

11. Drupal permissions system
One way CRUD definition.
User centric permissions (roles or user
access control)
SECURITY

12. Complex user & content centered permission system
Users are tagged with specific
metadata (market, categories, etc)
Contents are tagged with specific
metadata (market, categories, etc)
Final CRUD permissions are calculated
with complex logical operations on both
sides metadata.
SECURITY

13. Large volumetry
About 80K users.
More than 50K contents.
As every user has a unique CRUD
pattern according to the content we
have potentially 4 billions permissions.
SECURITY

14. Single content = Multiple permissions
One page = multiple webparts
Each webpart has its own permissions
Heavy permission access calculation
on display.
SECURITY

15. Permissions dynamically assigned by the client
User profile has to be calculated with
business rules.
Possibility to add / edit / delete any rule
at any time.
Rules written in simplified language for
the client, and the most “out-of-the-box
functional” as possible.
BUSINESS RULES

16. MIGRATION IN PHASES

17. Impacts
Keep contents synchronized.
Keep user profile updates
synchronized.
Learn from past errors and try to
improve user experience.
Permission system has to be
implemented before anything else.
Links to the legacy platform for every
unmigrated contents.
SSO between the legacy platform and
Drupal.
MIGRATION IN PHASES

18. Content & users synchronization
Huge volumes of data to be managed
on database side.
Caching to be chosen wisely > every
block of content is profiled.
Classical media performance issues.
Asynchronous profiling calculation
Complex profiling calculation that
needs to be fast to avoid locks on
tables.
One page = Multiple webparts access
checks > Impacts on pageload.
PERFORMANCE

19. SOLUTIONS
THE DRUPAL WAY

20. To see and download all
the slides for free :
https://digital.actency.fr/
drupacon_2014_large_scale_
personalization_drupal
(link in description)