Citrix Help needed!

The_KiD · 8 May 2006 at 16:07

We have 3 citrix servers all load balanced and have been working fine for the last 3 years.

However today the load balancing seemed to go crazy, 50 on one server, 30 on another and none on one of the servers.

When I checked the Load balancer on the server (CPU utilization) it said that the server with no one on was using 100% CPU, even though Task Manger said that CPU usage was 0%.

I changed the load evaluator to monitor memory instead, and instantly the same server was reporting 100% memory using, again Task Manager showed a different story.

I got round it by using the "user load" evaluator and the server is now happily allowing connections again.

any of you Citrix bods know why this is happening?

The_KiD · 9 May 2006 at 09:53

Really need some help on this guys, if anyone has any experience of Citrix please help a sysadmin in need.

One of our 3 citrix servers is refusing to load balance with the other 2.

in the Load Manager monitor it is showing 100% CPU usage, even though in the task manager on the server it shows normal CPU usage 10 - 20%.

Anyone know why this is? seen this before?

I switched it's load evaluator to using Server user Load instead and that seemed to work for a short while.

However once again it just stopped letting people on, this time it's load manager monitor was reporting 0% (as there were no users on it), but it is just not balancing them out.

There is nothinng unusual in the event viewer, the only thing I can see is on the primary citrix server is the following error.

Event Type: Error
Event Source: Perflib
Event Category: None
Event ID: 1015
Date: 09/05/2006
Time: 09:13:09
User: N/A
Computer: LCH-CTX
Description:
The timeout waiting for the performance data collection function "TermService" in the "C:\WINNT\system32\perfts.dll" Library to finish has expired. There may be a problem with this extensible counter or the service it is collecting data from or the system may have been very busy when this call was attempted.

i am sure we have had this error for a while and it hasnt caused issues before.

Otacon · 9 May 2006 at 10:50

Couple of suggested fixes here for that error, but I'm unsure if its related to your Citrix problem. Could be though, given the subject matter.

The_KiD · 10 May 2006 at 10:56

Just an update on this.

We are still having the problem, but have cleared the error from the event logs thanks to a hotfix from MS, however it did not resolve our Citrix problem.

We have also tried removing the server from the farm and re-adding it, with no joy.

Here is a screenshot of the problem:

As you can the load manager monitor is reporting 100% CPU usage, the "qfarm /load" command is showing full load, but Task Manager shows little/no CPU usage.

Sp00n · 10 May 2006 at 12:11

We've had a similar issue lately, the server refuses logon's, both citrix and windows and seems to be running 100% from the load manager but when i ran remote task manager, the actual cpu usage on the box is 0%.

We've been racking our brains about this for a week now and still haven't come up with anything

The_KiD · 10 May 2006 at 12:18

Have just agreed with a company for a 1 off support call and hopefully they will find a way to fix it, if they do I will make sure I post the resolution here.

The_KiD · 10 May 2006 at 18:19

YEYEYEYEYEYEYEY w000ty w000ty w000t w000t.

Thank you whoever recomended Centralis.co.uk

I visited their site, noticed they were doing a special offer for 1 free support call, registered, made my free support call at about 4:45 and and at 5:45 they had the problem fixed!!!!

WINNER!!!!!

We solved the problem by checking the performance monitor dll's and found the PerfOS was not enabled.

We enabled it and re-published the desktop on the offending server and all is now well and good.

Thanks again guys!