Loop with WMI Query taking too long, need to break out if time exceeds 5 min

Question

I've written a script that will loop through a list of computers and run a WMI query using the Win32_Product class. I am pinging the host first to ensure its online which eliminates wasting time but the issue I'm facing is that some of the machines
are online but the WMI Query takes too long and holds up the script. I wanted to add a timeout to the WMI query so if a particular host will not respond to the query or gets stuck the loop will break out an go to the next computer object. I've added my code
below:
$Computers = @()
$computers += "BES10-BH"
$computers += "AUTSUP-VSUS"
$computers += "AppClus06-BH"
$computers += "Aut01-BH"
$computers += "AutLH-VSUS"
$computers += "AW-MGMT01-VSUS"
$computers += "BAMBOOAGT-VSUS"
## Loop through all computer objects found in $Computes Array
$JavaInfo = @()
FOREACH($Client in $Computers)
## Gather WMI installed Software info from each client queried
Clear-Host
Write-Host "Querying: $Client" -foregroundcolor "yellow"
$HostCount++
$Online = (test-connection -ComputerName ADRAP-VSUS -Count 1 -Quiet)
IF($Online -eq "True")
$ColItem = Get-WmiObject -Class Win32_Product -ComputerName $Client -ErrorAction SilentlyContinue | `
Where {(($_.name -match "Java") -and (!($_.name -match "Auto|Visual")))} | `
Select-Object Name,Version
FOREACH($Item in $ColItem)
## Write Host Name as variable
$HostNm = ($Client).ToUpper()
## Query Named Version of Java, if Java is not installed fill variable as "No Java Installed
$JavaVerName = $Item.name
IF([string]::IsNullOrEmpty($JavaVerName))
{$JavaVerName = "No Installed"}
## Query Version of Java, if Java is not installed fill variable as "No Java Installed
$JavaVer = $Item.Version
IF([string]::IsNullOrEmpty($JavaVer))
{$JavaVer = "Not Installed"}
## Create new object to organize Host,JavaName & Version
$JavaProp = New-Object -TypeName PSObject -Property @{
"HostName" = $HostNm
"JavaVerName" = $JavaVerName
"JavaVer" = $JavaVer
## Add new object data "JavaProp" from loop into array "JavaInfo"
$JavaInfo += $JavaProp
Else
{Write-Host "$Client didn't respond, Skipping..." -foregroundcolor "Red"}

Answer 1

Let me give you a bigger picture of the script. I've included the emailed table the script produces and the actual script. While running the script certain hosts get hung up when running the WMI query which causes the script to never complete. From one of
the posts I was able to use the Get-WmiCustom function to add a timeout 0f 15 seconds and then the script will continue if it is stuck. The problem is when a host is skipped I am not aware of it because my script is not reporting the server that timed out.
If you look at ZLBH02-VSUS highlighted in the report you can see that its reporting not installed when it should say something to the effect query hung.
How can I add a variable in the function that will be available outside the function that I can key off of to differentiate between a host that does not have the software installed and one that failed to query?
Script Output:
Script:
## Name: JavaReportWMI.ps1 ##
## Requires: Power Shell 2.0 ##
## Created: January 06, 2015 ##
<##> $Version = "Script Version: 1.0" <##>
<##> $LastUpdate = "Updated: January 06, 2015" <##>
## Configure Compliant Java Versions Below ##
<##> $java6 = "6.0.430" <##>
<##> $javaSEDEVKit6 = "1.6.0.430" <##>
<##> $java7 = "7.0.710" <##>
<##> $javaSEDEVKit7 = "1.7.0.710" <##>
<##> $java8 = "8.0.250" <##>
<##> $javaSEDDEVKit8 = "1.8.0.250" <##>
## Import Active Directory Module
Import-Module ActiveDirectory
$Timeout = "False"
Function Get-WmiCustom([string]$computername,[string]$namespace,[string]$class,[int]$timeout=15)
$ConnectionOptions = new-object System.Management.ConnectionOptions
$EnumerationOptions = new-object System.Management.EnumerationOptions
$timeoutseconds = new-timespan -seconds $timeout
$EnumerationOptions.set_timeout($timeoutseconds)
$assembledpath = "\\" + $computername + "\" + $namespace
#write-host $assembledpath -foregroundcolor yellow
$Scope = new-object System.Management.ManagementScope $assembledpath, $ConnectionOptions
$Scope.Connect()
$querystring = "SELECT * FROM " + $class
#write-host $querystring
$query = new-object System.Management.ObjectQuery $querystring
$searcher = new-object System.Management.ManagementObjectSearcher
$searcher.set_options($EnumerationOptions)
$searcher.Query = $querystring
$searcher.Scope = $Scope
trap { $_ } $result = $searcher.get()
return $result
## Log time for duration clock
$Start = Get-Date
$StartTime = "StartTime: " + $Start.ToShortTimeString()
## Environmental Variables
$QueryMode = $Args #parameter for either "Desktops" / "Servers"
$CsvPath = "C:\Scripts\JavaReport\JavaReport" + "$QueryMode" + ".csv"
$Date = Get-Date
$Domain = $env:UserDomain
$HostName = ($env:ComputerName).ToLower()
## Regional Settings
## Used for testing
IF ($Domain -eq "abc") {$Region = "US"; $SMTPDomain = "abc.com"; `
$ToAddress = "[email protected]"; `
$ReplyDomain = "abc.com"; $smtpServer = "relay.abc.com"}
## Control Variables
$FromAddress = "JavaReport@$Hostname.na.$SMTPDomain"
$EmailSubject = "Java Report - $Region"
$computers = @()
$computers += "ZLBH02-VSUS"
$computers += "AUTSUP-VSUS"
$computers += "AppClus06-BH"
$computers += "Aut01-BH"
$computers += "AutLH-VSUS"
$computers += "AW-MGMT01-VSUS"
$computers += "BAMBOOAGT-VSUS"
#>
## Loop through all computer objects found in $Computes Array
$JavaInfo = @()
FOREACH($Client in $Computers)
## Gather WMI installed Software info from each client queried
Clear-Host
Write-Host "Querying: $Client" -foregroundcolor "yellow"
$HostCount++
$Online = (test-connection -ComputerName ADRAP-VSUS -Count 1 -Quiet)
IF($Online -eq "True")
$ColItem = Get-WmiCustom -Class Win32_Product -Namespace "root\cimv2" -ComputerName $Client -ErrorAction SilentlyContinue | `
Where {(($_.name -match "Java") -and (!($_.name -match "Auto|Visual")))} | `
Select-Object Name,Version
FOREACH($Item in $ColItem)
## Write Host Name as variable
$HostNm = ($Client).ToUpper()
## Query Named Version of Java, if Java is not installed fill variable as "No Java Installed
$JavaVerName = $Item.name
IF([string]::IsNullOrEmpty($JavaVerName))
{$JavaVerName = "No Installed"}
## Query Version of Java, if Java is not installed fill variable as "No Java Installed
$JavaVer = $Item.Version
IF([string]::IsNullOrEmpty($JavaVer))
{$JavaVer = "Not Installed"}
## Create new object to organize Host,JavaName & Version
$JavaProp = New-Object -TypeName PSObject -Property @{
"HostName" = $HostNm
"JavaVerName" = $JavaVerName
"JavaVer" = $JavaVer
## Add new object data "JavaProp" from loop into array "JavaInfo"
$JavaInfo += $JavaProp
Else
{Write-Host "$Client didn't respond, Skipping..." -foregroundcolor "Red"}
#Write-Host "Host Query Count: $LoopCount" -foregroundcolor "yellow"
## Sort Array
Write-Host "Starting Array" -foregroundcolor "yellow"
$JavaInfoSorted = $JavaInfo | Sort-object HostName
Write-Host "Starting Export CSV" -foregroundcolor "yellow"
## Export CSV file
$JavaInfoSorted | export-csv -NoType $CsvPath -Force
$Att = new-object Net.Mail.Attachment($CsvPath)
Write-Host "Building Table Header" -foregroundcolor "yellow"
## Table Header
$list = "<table border=1><font size=1.5 face=verdana color=black>"
$list += "<tr><th><b>Host Name</b></th><th><b>Java Ver Name</b></th><th><b>Ver Number</b></th></tr>"
Write-Host "Building HTML Table" -foregroundcolor "yellow"
FOREACH($Item in $JavaInfoSorted)
Write-Host "$UniqueHost" -foregroundcolor "Yellow"
## Alternate Table Shading between Green and White
IF($LoopCount++ % 2 -eq 0)
{$BK = "bgcolor='E5F5D7'"}
ELSE
{$BK = "bgcolor='FFFFFF'"}
## Set Variables
$JVer = $Item.JavaVer
$Jname = $Item.JavaVerName
## Change Non-Compliant Java Versions to red in table
IF((($jVer -like "6.0*") -and (!($jVer -match $java6))) -or `
(($jName -like "*Java(TM) SE Development Kit 6*") -and (!($jName -match $javaSEDEVKit6))) -or `
(($jVer -like "7.0*") -and (!($jVer -match $java7))) -or `
(($jName -like "*Java SE Development Kit 7*") -and (!($jName -match $javaSEDEVKit7))))
$list += "<tr $BK style='color: #ff0000'>"
## Compliant Java version are displayed in black
ELSE
$list += "<tr $BK style='color: #000000'>"
## Populate table with host name variable
$list += "<td>" + $Item."HostName" + "</td>"
## Populate table with Java Version Name variable
$list += "<td>" + $Item."JavaVerName" + "</td>"
## Populate table with Java Versionvariable
$list += "<td>" + $Item."JavaVer" + "</td>"
$list += "</tr>"
$list += "</table></font>"
$End = Get-Date
$EndTime = "EndTime: " + $End.ToShortTimeString()
#$TimeDiff = New-TimeSpan -Start $StartTime -End $EndTime
$StartTime
$EndTime
$TimeDiff
Write-Host "Total Hosts:$HostCount"
## Email Function
Function SendEmail
$msg = new-object Net.Mail.MailMessage
$smtp = new-object Net.Mail.SmtpClient($smtpServer)
$msg.From = ($FromAddress)
$msg.ReplyTo =($ToAddress)
$msg.To.Add($ToAddress)
#$msg.BCC.Add($BCCAddress)
$msg.Attachments.Add($Att)
$msg.Subject = ($EmailSubject)
$msg.Body = $Body
$msg.IsBodyHTML = $true
$smtp.Send($msg)
$msg.Dispose()
## Email Body
$Body = $Body + @"
<html><body><font face="verdana" size="2.5" color="black">
<p><b>Java Report - $Region</b></p>
<p>$list</p>
</html></body></font>
<html><body><font face="verdana" size="1.0" color="red">
<p><b> Note: Items in red do not have the latest version of Java installed. Please open a ticket to have an engineer address the issue.</b></p>
</html></body></font>
<html><body><font face="verdana" size="2.5" color="black">
<p>
$StartTime<br>
$EndTime<br>
$TimeDiff<br>
$HostCount<br>
</p>
<p>
Run date: $Date<br>
$Version<br>
$LastUpdate<br>
</p>
</html></body></font>
## Send Email
SendEmail