CheckXenAppIsFree.ps1  (Powershell)

 Description

I recently came across a situation where I needed to clear users off a server in production for testing.  Typically, we assign a load evaluator to keep new users from connecting to it and watch the server.  When a user's session becomes disconnected, we log the user off.  This can take a while depending on how busy the server is and is about as exciting as watching grass grow.  So, I thought "PowerShell can fix this problem!"  Here's the result.

http://wagthereal.wordpress.com/

Download

CheckXenAppIsFree.ps1

Code Snippet

# Check for disconnected users.  If none, wait 10 minutes and check again
# If there are disconnected users.  Log them off.  Continue until there are no more logged in sessions.
while ($sessCount -ge 0) {
 $MetaframeServers = $myFarm.Servers | Sort-Object -property ServerName | ? { $_.ServerName -like $citrixserver}
 $sessCount = $MetaframeServers.SessionCount 
 Write-Host "Current session Count = $sessCount on $XenAppServerName" -ForegroundColor White
 if ($sessCount -eq 0) { Write-Host "$XenAppServerName is free of users" -ForegroundColor White
  break
 } else {
  $disconnected = @()
  Write-Host "Checking for disconnected users on $XenAppServername" -ForegroundColor White
  $disconnected = @($myfarm.Sessions | Where-Object {$_.SessionState -eq 5 -and $_.ServerName -eq $citrixserver})
  if ($disconnected[0] -eq $null) {
   Write-Host "There are no currently disconnected sessions on $XenAppServerName" -ForegroundColor White
   Write-Host "Waiting 10 minutes" -ForegroundColor Red
   Start-Sleep -Seconds 600
  } else {
   Write-host "Logging off disconnected users from $XenAppServerName" -ForegroundColor White
   $i = 0
   foreach ($user in $disconnected) {
    $namedUser = $disconnected[$i].Username
    write-host "Logging off $namedUser" -ForegroundColor White
    $user.Logoff($false)
    $sessCount--
    $i++
   }
  }
 }
}

Disclaimer

These software applications are provided to you as is with no representations, warranties or conditions of any kind. You may use and distribute it at your own risk. CITRIX DISCLAIMS ALL WARRANTIES WHATSOEVER, EXPRESS, IMPLIED, WRITTEN, ORAL OR STATUTORY, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NONINFRINGEMENT. Without limiting the generality of the foregoing, you acknowledge and agree that (a) the software application may exhibit errors, design flaws or other problems, possibly resulting in loss of data or damage to property; (b) it may not be possible to make the software application fully functional; and (c) Citrix may, without notice or liability to you, cease to make available the current version and/or any future versions of the software application. In no event should the code be used to support of ultra-hazardous activities, including but not limited to life support or blasting activities. NEITHER CITRIX NOR ITS AFFILIATES OR AGENTS WILL BE LIABLE, UNDER BREACH OF CONTRACT OR ANY OTHER THEORY OF LIABILITY, FOR ANY DAMAGES WHATSOEVER ARISING FROM USE OF THE SOFTWARE APPLICATION, INCLUDING WITHOUT LIMITATION DIRECT, SPECIAL, INCIDENTAL, PUNITIVE, CONSEQUENTIAL OR OTHER DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. You agree to indemnify and defend Citrix against any and all claims arising from your use, modification or distribution of the code.