as described in https://serverfault.com/questions/407612/error-2006-mysql-server-has-gone-away
the uwsgi server usually forks its workers from the parent, which already has a connection
open to the mysql database. So the new child typically inherits the same connection.
Should both workers use the same connection at the same time, the server connection throws a
'2006, server has gone away error'.
The flag --lazy creates fresh forks for each child, each creating a new connection.
This prevents the overload and after testing, the '2006' error seems to not be reproduceable.
Raphael Maenle
081888d1f6