Redis

Posted by Greg Beech on Friday, October 7, 2016

Tracking authenticated user sessions can be implemented in Redis using setex with some serialised JSON. It works pretty well until you have to cope with millions, or even tens of millions…

Posted by Michael Groble on Monday, March 13, 2017

We’re not particularly proud that we are still using Rails 3.2, but we are extremely proud of scaling our traffic over the last few years. Our new services are built in Rails 5, but we still have a hefty chunk of…

Posted by Julien Letessier on Thursday, January 19, 2017

Counting unique users, checking if a credit card has already been used, or checking if this is a mobile user’s first visit ever — all of these require maintaining a large set of…