Question: What is the guidance on keeping the application running?

[andrew-vdb]

At this moment, I believe IIS kill the application after inactivity of the application.
The problem is the first request may take 30 seconds or more
The next request is quite fast.

What is the guidance as we have new server now?
Should I ping my website every 5 minutes or so?
Is it still worth it to have IIS to kill my application? (memory management etc)

[davidfowl]

Your application is likely taking that long on the first request after restart because of view compilation (I assume it's an MVC site?)

[andrew-vdb]

it is MVC site.
How to avoid re-compile? pinging will do?

[davidfowl]

How to avoid re-compile? pinging will do?

Sure, we're also working on view pre-compilation for 1.1 which is a much better way to avoid compiling views at runtime.

[andrew-vdb]

Hmm if you pre-compile my view, will updating the view still possible

on 1.0 you remove updating controller.cs
aspnet/Hosting#823 (comment)

on 1.1 you will remove upading view?

[davidfowl]

on 1.0 you remove updating controller.cs

Yep. We'll you can kinda do it if you use dotnet run/watch in production but that is pretty untested.

on 1.1 you will remove upading view?

Nothing is being removed. It's an option you can choose to use.
If you pre-compile the views will be a dll, that dll needs to be updated to update your views.

Anyways this has nothing to do with Kestrel. The original question was about keeping the site warm. If you run with IIS you get the usual IIS behavior which is fine for the most part. If you want to keep the application alive then pinging it seems like a fine idea. There's an IIS feature that does application warmup but I'm not sure if it works with ASP.NET Core as yet

/cc @pranavkm

[guardrex]

Auto-start is discussed here: aspnet/IISIntegration#161
View precompilation is discussed in aspnet/Mvc#3917 including ✨ magical tooling ✨ by @tuespetre at https://github.com/tuespetre/dotnet-precompile-views

[andrew-vdb]

Pinging will do and closed due duplicate