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Unexpected shutdowns of Win10 hosts


CHRISTIAN MOSES

Question

We've been having this issue for about a month now and it's driving us nuts. Users occasionally see "windows shutting down" and then they are immediately logged off and the VM they were connected to turns off. I've had this happen numerous times so I know it's actually happening. You're just working along, audio is streaming, system is responsive, 100% normal and then "shutting down..." 

Environment: 

Host OS: Windows 10 Enterprise (1903), 7.15 CU5 VDA, FSLogix 2.9.7237.48865 , non-persistent MCS. We've tried no cache configurations and cached (RAM and HD) but we see it regardless.

Infrastructure: Hyper-V 2016 cluster, 7.15 LTSR (7.15.0.15097).

 

Bread crumbs: 

The shutdown seems to be coming from the DDS where we see event ID: 3013 "The Citrix Broker Service successfully performed power action 'Shutdown' (origin: [Policy or Untaint or sometimes one of each]) on virtual machine..."
As I mentioned, the VM is not hung and shuts down normally through System Center and is then started up normally a couple minutes later. 

Anyone seen this before? Any ideas what to look into or that could be causing these? We see several of these a day out of only about 60 sessions, so it's pretty common and very disruptive. 

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5 answers to this question

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Hi,

 

Since you are running non-persistent, that probably also means you have power management in place to reboot the desktops when the users have logged off?

If so, have you double checked everything is correctly set there? Was anything changed since the issue started occurring? Can you post the settings?

Also, take a look at this link:

https://support.citrix.com/article/CTX223434

 

Best,

 

Koenraad

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Yeah, we do have power management configured for these desktop groups and they haven't changed in years. 120 minute shut down after disconnected. We also power off all VMs for about an hour in the middle of the night.

Additionally we have the following policies applied to the desktop groups:

* Disconnected session timer, enabled, 120 minutes

* Session connection timer, enabled, 1200 minutes

* Session idle timer, enabled, 180 minutes

None of those limits should be triggering these shutdowns. One happened to me just about 30 minutes ago. I was in an active session that was only started about two hours before.

 

I'll check the logs back a bit further and see if I see the 3015 events mentioned. These policies haven't been changed in a long time, and the only changes I can think of are the usual monthly patches and updates on the hosts/VMs and an update from 1709 to 1903 for our Win10 golden image.

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Hi Chris,

Kindly check on the XD Controller side is there any random registration failures before reboot ? 

 

Additionally please verify  MaxRegistrationDelayMin  

 

Refer to -http://support.citrix.com/article/CTX138738 for the registry keys that can be tweaked.

 

For other Registration failures refer to https://support.citrix.com/article/CTX126992

Regards,

Maniraj 

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Hello,

We experienced a similar issue and it was down to the idlepool settings of the delivery group, by default the idlepool settings were set to 10% , changing these settings to 100% resolved the issue

The following powershell will allow you to see what the Peak and Offpeak buffersizes settings are configured to:

Get-BrokerDesktopGroup “Desktop Group Name” 

Hopefully this will help.

 

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