Internal Server Error on the Access Point when using IIS

[Albert_Candelario]

When using QlikView and IIS, it could happen that for some big and/or complex documents the users face an Internal Server Error the first time the application is loaded into memory. If they do a refresh of the browser or if the application is already loaded they will not face this issue.

Environment:

• QlikView 
• Microsoft IIS

The user faces an Internal Server Error and you can see errors 500 on the IIS logs as well as timeout on the http call on the Windows logs for the IIS as below:

The description for Event ID 1309 from source ASP.NET 4.0.30319.0 cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event:

3001
The request has been aborted.
21.8.2019 16.38.25
21.8.2019 13.38.25
75b64583fc484536b3193dbf1bd3a5c0
4555
1
0
/LM/W3SVC/1/ROOT/QvAjaxZfc-1-132108612568222658
Full
/QvAjaxZfc
C:\Program Files\QlikView\Server\QlikViewClients\QlikViewAjax\
133040
w3wp.exe
HttpException
Request timed out.
https://qlikview.com:443/QvAjaxZfc/QvsViewClient.aspx?

Resolution

Increase execution timeout. 

1. Open the IIS Manager
2. Locate the WebSite QlikView is installed in.
3. Open the Configuration editor.
   
   

    

4.  Select the section: system.web/httpRuntime and modify the executionTimeout
   
   
   
   

5. Restart IIS 

   
   

[dmohanty]

Hi @Albert_Candelario ,

Thank you for sharing this. Do we need to Restart the WebServer machine after the changes? 

[Sonja_Bauernfeind]

Hello @dmohanty 

A restart is recommended.

All the best,
Sonja 

[Albert_Candelario]

Thanks @dmohanty  for your comment. I am glad you found the article useful. 

Thanks @Sonja_Bauernfeind  for the prompt response.

Cheers,

Albert