WCF Relay / Service Bus connection goes offline

Question

Hello group,

I use the Azure Relay service to bring my local WCF service to the cloud.
It works fine for a while.
But on the next day at the latest the connection goes offline and I have to wake her up again.
'Wake up' means: I navigate to the local WCF url via browser.
That's all.

How can I configure IIS or the WCF service to be always online?

regards Achim

Answer 1

This is more of an IIS question and I'm not much of an IIS Expert but I believe the key would be making the AppPool startMode = AlwaysRunning and setting the Application preloadEnabled = true.  Described here:

https://blogs.msdn.microsoft.com/vijaysk/2012/10/11/iis-8-whats-new-website-settings/

https://docs.microsoft.com/en-us/iis/configuration/system.webserver/applicationinitialization/

Answer 2

Thank you for the hints,

but that was not the solution.

regards Achim

Answer 3

What did the answer turn out to be?

Answer 4

I meant: the problem persists.

Answer 5

Have you read over these?

https://blog.jeroenmaes.eu/2014/06/azure-service-bus-relay-and-iis-8-warming-up-wcf-services/

http://www.wadewegner.com/2010/05/host-wcf-services-in-iis-with-service-bus-endpoints/
http://www.wadewegner.com/2010/08/autostart-wcf-services-to-expose-them-as-service-bus-endpoints/

https://social.technet.microsoft.com/wiki/contents/articles/1284.host-wcf-services-with-service-bus-endpoints-in-iis-and-windows-server-appfabric.aspx

Answer 6

Thanks, now it works!

One important thing was the warmup.dll

See: https://weblog.west-wind.com/posts/2013/Oct/02/Use-IIS-Application-Initialization-for-keeping-ASPNET-Apps-alive