IIS 7.5 and “Always Running” Web Applications

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re: IIS 7.5 and “Always Running” Web Applications

Damir — Mon, 09 Jul 2012 06:55:12 GMT

The feature works :). We have it running in several projects.

Here you have few internal undocumented details which might be helpful: developers.de/.../when-is-the-wcf-service-auto-started.aspx

re: IIS 7.5 and “Always Running” Web Applications

Vijay — Fri, 29 Jun 2012 18:58:34 GMT

Is this feature really working? I setup same configuration in Win 7, IIS 7.5 for a WCF service hosted in IIS. I need to call particular function to cache some heavy data.

re: IIS 7.5 and “Always Running” Web Applications

John Krikos — Mon, 23 Apr 2012 17:14:50 GMT

Please explain better the following:

Thanks.

re: IIS 7.5 and “Always Running” Web Applications

Damir Dobric — Mon, 16 Jan 2012 21:29:42 GMT

Hi Top, this post is related to AppFabric auto-start feature. I would recomment it, because exactlyy such kind og issues will not happen.

Second, you should define fully qualified type name (AssemblyQuelifiedName).

re: IIS 7.5 and “Always Running” Web Applications

TomN — Mon, 16 Jan 2012 08:42:15 GMT

I want to autostart my application so i created a class whitin my application:

namespace Administration.Presentation

{

public class StartUp : System.Web.Hosting.IProcessHostPreloadClient

{

public void Preload(string[] parameters)

{

StreamWriter fs = new StreamWriter(@"c:\temp\log.txt", true);

fs.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " started ");

fs.Dispose();

}

The provider and site node in my iis config:

</serviceAutoStartProviders>

</application>

</site>

but when starting iis i get an error in my eventviewer:

There was an error during processing of the managed application service auto-start for configuration path: 'MACHINE/WEBROOT/APPHOST Development'. The error message returned is: 'An error occurred while executing Preload method.

Exception: System.InvalidOperationException

Message: An error occurred while trying to create preload provider 'StartUp , Administration.Presentation'.

Exception: System.TypeLoadException

Message: Could not load type 'StartUp' from assembly 'Administration.Presentation'.

StackTrace: at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, Boolean loadTypeFromPartialName, ObjectHandleOnStack type)

at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, Boolean loadTypeFromPartialName)

at System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark)

at System.Type.GetType(String typeName, Boolean throwOnError)

at System.Web.Hosting.PreloadHost.CreateIProcessHostPreloadClientInstanceAndCallPreload(String preloadObjTypeName, String[] paramsForStartupObj)

StackTrace: at System.Web.Hosting.PreloadHost.CreateIProcessHostPreloadClientInstanceAndCallPreload(String preloadObjTypeName, String[] paramsForStartupObj)

at System.Web.Hosting.PreloadHost.CreateIProcessHostPreloadClientInstanceAndCallPreload(String preloadObjTypeName, String[] paramsForStartupObj)

at System.Web.Hosting.ProcessHost.PreloadApplicationIfRequired(String appId, IApplicationHost appHostParameter, HostingEnvironmentParameters hostingParameters, LockableAppDomainContext ac)'. The worker process will be marked unhealthy and be shutdown. The data field contains the error code.

what did i do wrong?

Host WCF Services with Service Bus Endpoints in IIS and Windows Server AppFabric

Damir Dobric Posts — Sat, 28 Aug 2010 13:19:51 GMT

If you know how *RelyBindings of Service Bus works or have at least an idea how they could work, it is

re: IIS 7.5 and “Always Running” Web Applications

Damir Dobric — Sun, 27 Dec 2009 14:02:54 GMT

Note that is some cases w3wp.exe will not start automatically as described in the post above.

W3wp.exe is launched if there is at least one application associated with the pool.

Please also note that any change in the applicationHost.config file part related to certain application pool will cause all applications which use that pool,

to reconfigure to use the default pool called “ASP.NET V40”.