Scheduler for Application Component Monitors

hallstev5

Create a scheduler that allows you to specify a time and day for a monitor to run.  For example, when you need to check if a file exists at on a specific day at a specific time.

kschmalz

This is actually a situation where I've found the Powershell monitors come in handy. I've never restricted them to a certain day, but I have several monitors that will make sure a file only exists during a certain time and then that it does not exist outside of that time-frame. The nice thing is that the monitor is always running so that if the file shows up when it shouldn't be expected I get a warning message about that as well since in my case there's the potential to duplicate data. I'm sure the same principal can be applied to a day restriction.

This example is always running, and it only expects the file between 03:30 and 08:00 with a bit of a buffer on either end. I'll get a warning on statistic 4 (found outside of expected time), or critical on statistic 5 (not found when expected). 

$now = Get-Date
$exMin = Get-Date '03:30'
$exMax = Get-Date '08:00'
$exMin2 = Get-Date '03:00'
$exMax2 = Get-Date '08:15'
$noMin = Get-Date '03:45'
$noMax = Get-Date '08:00'

if (Test-Path -Path \\<share_location>\required_file.csv) {
	if ($now.TimeOfDay -GT $exMin.TimeOfDay -And $now.TimeOfDay -LT $exMax.TimeOfDay) {
		Write-Host "Message: Up -File was found during valid time range"
		Write-Host "Statistic: 0"
	}
	elseif ($now.TimeOfDay -LT $exMin2.TimeOfDay -Or $now.TimeOfDay -GT $exMax2.TimeOfDay) {
		Write-Host "Message: Warning - File exists during unexpected time"
		Write-Host "Statistic: 4"
	}
	else {
		Write-Host "Message: Up - File was found during valid time range (Buffer time)"
		Write-Host "Statistic: 2"
	}	
}
else {
	if ($now.TimeOfDay -GT $noMin.TimeOfDay -And $now.TimeofDay -LT $noMin.TimeOfDay) {
		Write-Host "Message: Critical - File not found when expected"
		Write-Host "Statistic: 5"
	}
	else {
		Write-Host "Message: Up - Outside critical time range (No File)"
		Write-Host "Statistic: 1"
	}
}