IIS Restart on Updating a Web Application - iis

I have deployed multiple Web Applications in IIS, When I am deploying a modified Dll for any of this Web Application, I need to restart the IIS to get the effect of the new dll. This impacts other Applications. All of these Applications get restarted as I have restarted IIS. Is there any way by which I can restart the specific Application, for which the modified Dll has been deployed?

Yes. Create a different "Application Pool" for your app (in IIS). Make sure your app is assigned to the new pool.
When your app is deployed, the app pool is automatically restarted (affecting all of the other apps in that pool). By default, everything gets deployed to the default app pool.

Related

How to restart a single application under a site pool in IIS

I have multiple applications under the "Default Web Site" pool. I can restart the entire pool from IIS Manage Website options but I have many applications under that which I don't want restarted.
How can I restart just the one because we cannot see the options to do so under each application.
IIS does not provide an option to restart the single app in the app pool. So from the IIS user interface it will not be possible to restart the single app.
You could try to test the workaround suggested by Lex Li may work for you.

Will deployment of web application that is under main site in IIS cause take down of the main site?

I have main website hosted in my IIS and under that I have multiple applications (another web apps) that run on a separate application pool. I know that if you will change some files of site that is hosted in IIS it will result into application pool recycling. However I am not sure what will happen in my scenario, from one hand they have different app pools, but from another hand application is hosted under main website.
Is it possible to deploy application that is hosted under web site without disrupting main site operation?
Thanks in advance.
No it wont. If you have your main site and applications running under different application pool, you should be fine.
Application Domains and application pool ensure isolation with respect to applications on IIS. Changes made to application will cause specific application domain to refresh and will not have an impact on other applications.

If deploy an ASP.NET Core as a web app to Azure, what is used for hosting?

ASP.NET Core out of the box supports hosting in IIS and self-hosting scenarios using the Kestrel and WebListener HTTP servers. Accordingly to web.config / project.json looks like IIS is used, but if so it is not clear for my "why" so, as now IIS is acting just as a reverse proxy and the application itself runs as a separate process using the Kestrel HTTP server.
So the main question is "what" and "why" is used by default, if deploy to Azure?
Yes, when you publish to Azure App Services, IIS is used to host your application. As you said, it acts as a reverse proxy to your application, which is running Kestrel HTTP server. But IIS does more than that - it also manages the application process through application pool, which includes or may include:
restarting the app when web.config changes
starting the app on the first HTTP request
running the app as a specified user
recycling the app pool (and effectively restarting the app) on certain conditions
starting multiple app processes
handle webdeploy (this is what happens when you hit "Publish" in Visual Studio

After installation of website it changes Application Pool of web application that follows it.

I have InstallShield (IS) Basic MSI project, that creates Application Pool and installs web application on IIS under existing website.
On IIS default website is stopped and different website named WebApps using port 80 is running it uses AppPool1. Under WebApps we have several applications that use different App Pool for themselves for example AppPool2, AppPool3. When I install new application under WebApps and set its App Pool to newly created AppPool4 some applications App Pool changes to ASP.NET v4.0 AppPool1.
You can see my Application Pool and Web App settings below from IS.
Does anyone know why this could be happening?
Issue was with Web App .NET Framework version was set to v4.0 and this would cause all the Web Apps under Website to be set to use .NET Framework v4.0

Automatic Browse Service.svc file in iis

I have created a WCF service which i have hosted in IIS. When I start the service in IIS, the Service do not started until I browse my Service.svc file.
Application pool gets recycled after a specific interval, then when the Service is restarted I again need to go and browse the Service.svc file.
I have set this Service as Default bt it does not work and results the same.
Is there any way to automatic browse my Service.svc file when the Service is started or restarted.
This is a general annoyance with IIS. It launches worker processes to perform website processing which don't (always) start until the website has been requested. The workaround I've used in the past is to hit a page outside of my web application to launch the IIS worker process so it is available when I need it. Be careful though there are some nuances to the app pools that can make this more complicated than it needs to be.

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