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Load Balancing appears to not work on certain servers, in the Citrix XenApp / Presentation Server forum on BrianMadden.com

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James Lear posted on 10-16-2008 7:15 AM
Hi all,

I have a server farm with 26 servers in it.

All servers are Windows 2003 SP2 to the current patch level and running MPS4.0 with R04 patch level.

I have an application running on 12 servers, 10 of these servers are load balancing fine, 2 are not. A qfarm /load indicated that they have little load on them but they only have maybe 4 users on them as opposed to the 50 or so on the others?

A reboot does not resolve the issue. I have moved the DC roles off the servers and no change. I have also tried disabling AV but to no avail?

Any ideas?

Many thanks

James

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Kjetil Ermesjo replied on 10-16-2008 7:28 AM
What kind of LB rule are assigned to the servers ?
Have you tried recreating LHC ?

The ultimate solution could be to run chfarm and rejoin the farm ...

/Kjetil
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James Lear replied on 10-16-2008 8:06 AM
I have tried various LB rules, user count, CPU/Mem usage etc...Nothing changes

I have rebuilt the LHC on all my servers and have already done a CHFARM.
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James Lear replied on 10-16-2008 8:35 AM
Now one thing I have noticed on the 2 servers that are not working is this...this doesn't happen on the working servers -

Event Type: Failure Audit
Event Source: Security
Event Category: Object Access
Event ID: 560
Date: 16/10/2008
Time: 14:15:34
User: DOMAIN\User01
Computer: SERVER
Description:
Object Open:
Object Server: SC Manager
Object Type: SERVICE OBJECT
Object Name: lanmanworkstation
Handle ID: -
Operation ID: {0,7037132}
Process ID: 580
Image File Name: C:\WINNT\system32\services.exe
Primary User Name: SERVER1$
Primary Domain: DOMAIN
Primary Logon ID: (0x0,0x3E7)
Client User Name: at637500
Client Domain: DOMAIN
Client Logon ID: (0x0,0x691FF4)
Accesses: Query status of service

Privileges: -
Restricted Sid Count: 0
Access Mask: 0x4
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James Lear replied on 10-20-2008 9:03 AM
This issue is still occuring...no longer getting the error 560 in the event viewer but load balancing is not happening on the servers. Apps launch on them just fine if I try them on a special icon that is just for these servers, but LB ones do not ever hit it....well I say that but the Load manager log show it is, the sessions just do not appear?

I have even tried remving and reinstalling Citrix....can anyone help?
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