使用 Powershell 获取 IIS 应用程序池 ProcessID

Question

I have searched quite a bit for options to get the app Pool process id for a powershell script. The issue I am having is most solutions I find point to using the WebAdministration WorkerProcess. I tried the below script on Windows Server 2012 (IIS 8) and Windows Server 2019 (IIS 10).

Get-ChildItem -Path IIS:\AppPools |%{
    $AppPool = $_.Name
    Get-WmiObject -NameSpace 'root\WebAdministration' -class 'WorkerProcess' | Where-Object {$_.AppPoolName -match $AppPool} | Select-Object -Expand ProcessId | ForEach-Object {
            $AppPoolPID=$_
            $AppPoolProcces = Get-Wmiobject -Class Win32_PerfFormattedData_PerfProc_Process | Where-Object { $_.IdProcess -eq $AppPoolPID } 
            $AppPoolCpu = $AppPoolProcces.PercentProcessorTime
            $AppPoolMemory = [Math]::Round(($AppPoolProcces.workingSetPrivate / 1MB),2)
            $Cpu += $AppPoolCpu
            $Memory += $AppPoolMemory
            Write-Host "Application pool $AppPool process id: $_ Percent CPU: $Cpu Private Memory: $Memory"
    }
}

Running Get-WmiObject -NameSpace 'root\\WebAdministration' -List Provides a rather large list of items, but WorkerProcesses is not one of them.

I've also tried dir IIS:\\AppPools\\$AppPool\\WorkerProcesses\\ which also provides no results.

How can I get the processId of a specific application pool? or if that is no longer possible, how would I be able to get the cpu and memory consumption of specific application pools?

Answer 1

Try piping to get some extra info:

$id = dir IIS:\AppPools\MyAppPool\WorkerProcesses\ | Select-Object -expand processId
$id

Answer 2

Thanks @dai for pointing out that the process may not even be running due to lack of web requests. I was under the impression that it would always be running.

The script portion as I posted initially does actually work. So for my purposes - no results is a good thing.