TutorialsJuly 20, 2026·6 min read
Cookie Sticky Sessions: Keep Users on Same Server
Implement cookie-based sticky sessions for shopping carts, logins, WebSockets.
What Are Sticky Sessions?
Keep users on the same server throughout their visit. Essential for shopping carts, login sessions, WebSockets.
How It Works
1. First request: pick origin, set cookie
2. Next requests: cookie routes to same origin
3. Origin down: pick new origin, update cookie
Use Cases
- Shopping carts
- Login sessions
- WebSocket connections
- Multi-step forms
Limitations
- Not needed for stateless apps
- May conflict with CDN caching
#sticky sessions#cookies#session persistence
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