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Citrix Studio: Machine Catalogs and Hosting Sections Loading Time

Timothy Cochran


Has anyone experienced that Citrix Studio loads slowly in Machine Catalogs and Hosting since they upgraded to XenDesktop 7.1? Sometime I am sitting here waiting more then a minute waiting for everything to refresh. Its frustrating. I know in DesktopStudio 5.6, it happen once in a blue moon but Citrix Studio is consistent.


Any help would be greatly appreciated. Thank you.


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OK, we're starting to make some progress in finding out what's causing this. It appears it's the way that the desktop controllers communicate with Host-Connections when there XenServer HA Pools. We measured the load times individually and:


2-Node HA Pool:

Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 4
Milliseconds      : 580
Ticks             : 45800809
TotalDays         : 5,30101956018519E-05
TotalHours        : 0,00127224469444444
TotalMinutes      : 0,0763346816666667
TotalSeconds      : 4,5800809
TotalMilliseconds : 4580,0809



4-Node HA Pool:

Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 7
Milliseconds      : 211
Ticks             : 72119011
TotalDays         : 8,34710775462963E-05
TotalHours        : 0,00200330586111111
TotalMinutes      : 0,120198351666667
TotalSeconds      : 7,2119011
TotalMilliseconds : 7211,9011

Larger Pools take longer to load accordingly. So, if you have alot of HA Pools running as Host connections or a very large HA Pool, it will be very slow in loading. I think XD 7.0 and earlier versions only contacted the pool Master. It seems that with XD 7.1 each and every Host in the HA Pool is contacted.


That's where we're at so far....

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Take a look at the properties of your Host Connection. Look at the HA Portion and I'm willing to bet that all 4 of your hosts are entered there. If you were to remove the other servers so that only the Master Server is there, you will find that the loading times are DRASTICALLY shorter.


On your DDC run the following command in Powershell:


Measure-Command {Get-ChildItem  -AdminAddress 'DDC-FQDN:80' -LiteralPath @('xdhyp:\connections\Host-Connection-Name')}


Replace DDC-FQDN with FQDN of your Delivery Controller and Host-Connection-Name with the Name of your Host Connection. That will give you an output like the one I posted.

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I tryed all this, and and the problem still exists. even if I removed it down to one host. I also dont use HA in my enviroment. Not sure what I should do at this point. I did do a test on one of my calalog and got the following error:


Provisioning scheme 'TESTRUN' cannot contact the associated Hypervisor. The attempt resulted in error 'Snapshot not found'.
Reconfigure the host to indicate a valid Hypervisor Connection.


Thought that was this was little weird that the test thought the hypervisor connect wasnt vaild.

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Any news on this problem ? We have the same issue here.


Really a annoying to work with Citrix Studio 7.1. I mean all is slow in Citrix Studio, but selecting "Machine Catalog" takes at least a minute. Wish to get back the old AMC.


Any progress from Citrix Engineers ? Is it maybe fixed in 7.5 ?

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Timothy, you can convert, but only when there are no open connections to the DB. So:


1. Stop Broker Service on all controllers

2. Change Collation on the DB

3. Start Broker on all Controllers.


I'll test this myself when I have time, so THANKS ALOT for the Idea that the DB Collation the culprit is!!

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