The ProblemWe have a varied and distributed server stack that uses three different languages along with 50–100 EC2 instances running at any given time. We handle about 20 million requests a day with more than a million requests at peak hours. Most of these requests (75%) are authenticated requests i.e. they hit a session store. This made us re-evaluate our session store to be maintainable as well
![Session Handling for 1 million requests per hour](https://cdn-ak-scissors.b.st-hatena.com/image/square/44c86047376689626750cd1fe4ce4e1662ff14bd/height=288;version=1;width=512/https%3A%2F%2Fmiro.medium.com%2Fv2%2Fresize%3Afit%3A680%2F0%2A5Q_hiB4nf8DKtdJL.png)