Earlier this week I wrote a guest post for the Google App Engine Blog on how Pulse has scaled-up our backend infrastructure to prepare for the recent Kindle Fire launch.
The Kindle Fire includes Pulse as one of the only preloaded apps and is projected to sell over five million units this quarter alone. This meant we had to prepare for nearly doubling our user-base in a very short period. We also needed to be ready for spikes in load due to press events and the holiday season.