Question about cross-site routing and session-aware behavior

[Dhia Gharsallaoui]

Hello,

Thank you for maintaining Skupper, I really appreciate this project.

I have a question about cross-site routing: when I create two connectors in different sites that match the same listener, is it possible to achieve session-aware routing between them?

Best regards,
Dhia Gharsallaoui

[Christian Kruse]

Hi Dhia,

Thank you for reaching out. No, this is not presently an option. At a given listener, skupper routes traffic to the connector in the network it has the fewest open connections to (with an offset for the cumulative routing link cost.)

That said, this is an area we are actively looking to explore. I would be curious to hear specifics on what you are looking for in session-aware routing. Source IP based, HTTP header/cookie/url parameter, something else?

Cheers,
Christian

[Dhia Gharsallaoui]

Hi Christian,

Thanks for the clarification.

My use case involves inference workloads where each user has an in-memory session context. If requests from the same user get routed to different connectors/pods, that context is lost and the session breaks. So I’m looking for session-aware (sticky) routing to consistently route a given user/session to the same connector.

HTTP-level affinity would work best for us (e.g. session ID via header or cookie). Source IP–based routing would be less reliable due to NAT and proxies.

Hope this helps clarify the need.

Best regards,
Dhia