PowerShell script to kill a process when it reaches a certain memory threshold. Writes output to console and a log file.

Kill-Service-At-80-GB.ps1

# Kills a specific Windows Service process if it uses over 80 GB of memory
# Note, be sure to set the Windows Service to restart instantly on failure

# To run this script manually, run the following 2 lines of PowerShell:
# powershell -command "C:\Temp\WindowsScheduledTaskScripts\Kill-Service-At-80-GB.ps1"
# $LASTEXITCODE

# To run as a Windows Scheduled Task:
# Set the program to run as "powershell"
# Set the command to: -Command ". C:\OneDine\WindowsScheduledTaskScripts\Kill-Service-At-80-GB.ps1; exit $LASTEXITCODE"

$maxMemoryInGb = 80;
$processName = "MyProcessName"
$logFilePath = "C:\Temp\WindowsScheduledTaskScripts\Kill-Service-At-80-GB.log"

$processInfo = get-process $processName
$oneGb = 1024 * 1024 * 1024
$memoryUsageInGb = [math]::round($processInfo.WorkingSet64/$oneGb, 2)
$currentDate = Get-Date -Format "yyyy-MM-dd HH:mm:ss";

$output = "$currentDate | Memory Usage: $memoryUsageInGb GB"
$output | Write-Output
$output | Out-File -append -FilePath $logFilePath

if($memoryUsageInGb -gt $maxMemoryInGb){
    try {	
		$output = "$currentDate | Stopping Process: $processName"
		$output | Write-Output
		$output | Out-File -append -FilePath $logFilePath
		
		Stop-Process -InputObject $processInfo -Force
		exit 0
	}    
    catch {
		$errorMessage = $error[0].exception.message	
		
		$output = "$currentDate | Error Stopping Process: $processName - $errorMessage"
		$output | Write-Output
		$output | Out-File -append -FilePath $logFilePath
		
		exit 1
	}
} else {
	exit 0
}