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Resolved PB 2017 app freezes in Citrix, recover with minimize-restore app window
  1. Issue
  2.  Citrix
  3.  PowerBuilder
0 Votes
  1. Antti Kukko
  2. PowerBuilder
  3. Friday, 11 October 2024 03:23 PM UTC

Hi!!

I have browsed a lot of Q&A without finding the answer.

Our PowerBuilder application is as follows:

- PowerBuilder 2017

- database MS SQL Server, connection with SNC native Client

- more than 20 PBLs

- the window is quite normal application with MDI frame (AFAIK no themes in PB2017)

- citrix Workspace app 24.2.0

 

The client has used our app for years without issues. But now that they upgraded Citrix the following symptoms have started to emerge. When opening a main window with plenty of datawindows and starting to browse the dw rows, the app freezes up and CPU usage goes up. If the user minimizes the app from Windows taskbar - and then restores it, the app functions normally for a while, and the the same problem will repeat itself. 

We tried out adding DisableProcessWindowsGhosting() call to application open event - no help.

We suspect that something is gradually getting corrupted somewhere because the application works well if the Citrix server is recently rebooted and if there are not many users logged in. After the server is getting usage load, the problems are starting to develop. 

 

Any help greatly appreciated. Regards,

Antti

 

 

Will Appeon provide a PowerBuilder application as a service ... WebBrowser clicked
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