[THIN] Re: Issue: Application lists dropping from client PN application lists

  • From: "Carl Stalhood" <cstalhood@xxxxxxxxxxxxx>
  • To: <thin@xxxxxxxxxxxxx>
  • Date: Mon, 2 Dec 2002 20:04:21 -0600

I've seen this issue as well and found that upgrading to MetaFrame XP
resolved the issue. :)

As a temporary workaround when this issue occurs, restart the Program
Neighborhood service on whichever server users are configured to
communicate with.  This should bring back all of the applications.

Carl Stalhood
Choice Solutions

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of jason.weems@xxxxxxxxxxxx
Sent: Friday, November 29, 2002 4:14 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Issue: Application lists dropping from client PN
application lists


I did post something on this last week, though I have since gathered
more 
information.  I am currently trying to work w/ Citrix on the issue,
however my 
Citrix vendor does not seem to be in the office today (grrr... although,
I 
can't complain too much, as I don't think I should be here today anyway
:)  The 
issue that is occuring is that applications are occasionally dropping
off 
Citrix user application lists.  I have taken debug logs (QServer
/debugnhwatch) 
from the all our Citrix servers during the period that the issue was
occurring. 
 Unlike some logs I had taken the end of last week, all the debug logs
appear 
to be consistently reporting all MetaFrame server application set
information.  
Any suggestions would be greatly appeciated.


Possible Notes of interest:

1.  Application list(s) from servers display a full list of
applications, issue 
is only occurring from client workstations

2.  Applications disappearing are typically non-core production
applications, 
as most of our core applications are load balanced across multiple
servers.  If 
a user were no longer able to browse a server for an application list,
the user 
should still be able to the see the application as it would be published
via 
other Citrix servers that are still currently available.

3.  'QServer /TCP' and 'Qserver /IPX' both display correct information
at same 
time workstations clients only reporting partial application list.

4.  Forcing an election (qserver /election) will not make the full
application 
list refresh.

5.  If you update an IMS published application properties (ex:
ServerName - 
Task Manager), that application will refresh and be added to the client 
application list.  However, only that application will re-appear (i.e.
other 
applications published on that server still do not appear)

6.  When applications were dropping off user application lists on Friday

(11/26/02), the same (2) sets of servers consistently appeared to be
dropping 
off (i.e. the exact servers that were dropping off did not appear to be 
sporadic lists)

7. We have recently added (2) backup domain controllers into our
production 
network.  At aproximately 1:45 PM today, I asked a co-worker to power
down the 
DC servers.  We have not had the disappearing application list issue
re-occur 
since the DC servers were taken down, however the issue stopped occuring

aproximately 30 minutes prior (i.e. 1:15).  The servers are currently
back up, 
however the Net Logon service has been disabled on the servers.  I have 
requested our local helpdesk inform me when users next report
applications 
disappearing within their client.

8. Our NFuse web site also appears to be dropping published
applications.  The 
issue seems even more prominant from NFuse than on the client PN side.  

9. Both reported occurences off applications disappearing from the
client PN 
application list occured during the latter part of the week (i.e.
Thursday and 
Friday).  Issue did not occur this Monday (11/15) through Wednesday
(11/27).  


Regards

Jason Weems
Sr. Network Systems Engineer
Systems Engineering Group
Citigroup Real Estate Lending and Technology Group
314-275-1142
jason.weems@xxxxxxxxxxxx



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