Citrix XenApp Server Running on Windows Server 2008 R2 Hard Locks Under Heavy Load
On a recent project, the customer experienced an issue where after updating the Citrix Provisioning Services (PVS) image to Internet Explorer (IE) 11 caused a major outage.
What would happen is that is any user or users caused two Microsoft Office applications to run at the same time, the CPU would spike to between 80% to 100% and the server would become unresponsive. The only recourse was to use the hypervisor to either Force Shutdown or Force Reset the server.
The customer’s previous PVS image used the exact same version of Microsoft Office and other core applications. The only thing that changed was an upgrade from IE10 to IE11. After reverting users to other servers for the Office applications, troubleshooting the root cause began.
To make a very long story short, it was NOT:
- An IE11 issue
- A PVS issue
- A XenApp issue
- An Office application issue
- Or a user issue
Read the entire article here, Citrix XenApp Server Running on Windows Server 2008 R2 Hard Locks Under Heavy Load
via Carl Webster