[THIN] Re: Load Balancing problem if server loose communication with datacollector

  • From: "Jeff Durbin" <techlists@xxxxxxxxxxxxx>
  • To: <thin@xxxxxxxxxxxxx>
  • Date: Thu, 29 Jul 2004 11:01:17 +1200

How do you know IMA is working fine when the server hangs up? What's
actually hanging up on the server? Have you tried restarting the IMA when
this happens, or maybe Terminal Services? 

> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx 
> [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Christophe MORVAN
> Sent: Thursday, 29 July 2004 1:04 a.m.
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Load Balancing problem if server loose 
> communication with datacollector
> 
> Hi all,
> 
> We are actually using several load balanced WTSE NT4 SP6 +  
> MFXP 1.0 FR1
> SP1 for our ICA Clients.
> 
> We are experiencing the following problem :
> When one of our servers gets stuck (users cannot proceed 
> through the login process, or tsadmin doesn't respond and 
> show a question mark for the specified server, or no response 
> to the query user command ......), the load evaluator for 
> load balancing  on this server doesn't refresh its current 
> load anymore on the datacollector. As IMA is working fine, 
> our datacollector still considers the server available and 
> keep on sending  users to this server.
> 
> It seems like the datacollector never checks the last update 
> of the evaluator, in order to discard any stuck server  from 
> its load balancing list.
> 
> The result of this behaviour : Load Balancing prevents users 
> from opening a session in the CITRIX FARM.
> Today, when this phenomenon appears, we manually remove the 
> server from the published application definition through the 
> CMC. After the server reboots, we add it back in the 
> published application definition.
> 
> Any idea if this behaviour is corrected with W2003 ou MFXP 
> FR3 SP3, any specific hotfix ?
> Do you know a mean to prevent "automatically" such a stuck 
> server from being used by Load Balancing ?
> 
> Any help would be appreciated
> 
> Regards
> 
> --
> Christophe MORVAN
> 
> THALES Systèmes Aéroportés
> 2, Avenue Gay Lussac
> 78851 ELANCOURT
> Tel:33-01-34-81-47-89
> Fax:33-01-34-81-65-49
> 
> 
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Using the latest software, hardware, networking technologies, proven technical 
expertise, proprietary software and best practices, EOL provides 
custom-tailored solutions for each client?s mission and specific goals.
http://www.go-eol.com
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