db.py defs.py.sample add defs for db pool size
Due to database pool size being hardcoded to 1, concurrent requests were not possible and therefore slowed the app down considerably when several users were trying to use the app at the same time. Often resulting in timeouts. Adding this parameter allows us to manage the pool size easily and ensure users can post requests at the same time.
http://www.web2py.com/books/default/chapter/29/06/the-database-abstraction-layer (Connection pooling)
merci Ryan, super !