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Load balancing SignalR

Alessandro Galasso's Avatar

Alessandro Galasso

20 Oct, 2016 07:30 AM

Hi all,
I've created a SignalR application and currently running on a single Web worker.
What will happens if I scale it to more than one worker?
Does load balancing manage it with a sticky session?

Any other good to know advice to run SignalR on AppHarbor?

Thanks,
Alessandro.

  1. Support Staff 1 Posted by rune on 20 Oct, 2016 02:07 PM

    rune's Avatar

    Hi Alessandro,

    AppHarbor doesn't manage sticky sessions (mostly because it's fairly unreliable across deployments) so my best advice would be to design the application to scale out with a shared database or queue system. There are a few options for this, but you might want to consider using SignalR's Redis support for this -- there are also a few Redis add-ons in the add-on catalogue you might want to use.

    Best,
    Rune

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