[Session hung at logoff on Windows Server 2012 R2]

We've been on XenDesktop 7.7 since the last maintenance window (about a month ago), and so far, no stuck sessions. Until we get another stuck session, we can't really proceed with Citrix escalation. I'm going to prevent our Citrix servers from rebooting this Friday during our monthly maintenance and see how it holds up for another month without reboot.

 

The only "fix" we have performed so far is to simply upgrade the entire infrastructure to 7.7, with exception of the PVS Servers themselves (they are still on 7.6).

 

Steps I took was to uninstall VDA 7.6, then install 7.7 onto the XA/Server OS servers. Upgraded Director, Studio to 7.7. Upgraded License Server to the latest recently. Upgraded to StoreFront 3. Clients in our environment got upgraded to Receiver for Windows 4.3.

 

PVS will be upgraded to 7.7 eventually too, then the vDisks to 7.7. It's the only infrastructure item that's still on the older version.

 

Netscaler VPX is still on v10, I think.

Thank you.  After talking to a Citrix tech we need to apply a couple of hotfixes and wait before doing anything else.

We tend to see this happen after something on the server has a long high cpu usage.

[Session hung at logoff on Windows Server 2012 R2]

Duplicate post.

 

[Session hung at logoff on Windows Server 2012 R2]

Here's the latest update from the Citrix escalation engineer... I had to suspend the VM and send him a copy of the suspended VMware .vmss file. He analyzed it and, paraphrasing:

 

"I've been stepping through the latest system dump and ran into a roadblock. Because the sessions were present for 25 days, the data has been paged out and the callstacks were no longer present in memory. This makes it impossible for me to follow the ALPC wait chains."

 

He's proposing that the moment we detect another stuck session, to go ahead and suspend the VM again that evening and send the .vmss file for analysis. This will be hard to detect... I suppose I'll have to check Director every day to see if a stuck session is there.

 

I've upgraded to XD 7.7 yesterday. It's a waiting game now.

 

If I remember right, the issue has something to do with "ALPC wait chains".

 

 

 

Did you ever get anything back from Citrix.  We have a brand new environment and are starting to see the same thing.

 

Thanks

-guy