architecture Designing a Distributed Session Store: Why Sticky Sessions Break Under Load josedacruz, November 6, 2026November 6, 2026 TL;DR: Sticky sessions keep a user’s login and cart data glued to whichever server first handled their request. It’s simple to set up, but it quietly breaks the moment you restart a server, deploy new code, or add more servers to handle traffic. Moving session data out of the app… Continue Reading