CODEWITHSUNDEEP
powershellprocesslogstash
emckenzie
emckenzie

Reputation: 21

Powershell stop-process not killing Logstash

I am writing a powershell script that allows Logstash to run for a certain amount of time and then stops the program by process id. Here is a basic version of the code:

$logstashFilepath = "C:\Users\emckenzie\Downloads\logstash-5.3.2\logstash-5.3.2\bin\logstash.bat"
$logstashArguments = "-f C:\users\emckenzie\Downloads\logstash-5.3.2\logstash-5.3.2\test_loader.conf"

$logstashprocess = Start-Process -FilePath $logstashFilepath -ArgumentList $logstashArguments -PassThru
$logstashid = $logstashprocess.Id

Write-Host $logstashid

Start-Sleep -s 60

Stop-Process $logstashid

In this test case Logstash only writes from stdin to stdout. When I run this program the output looks like this:

17120
Stop-Process : Cannot find a process with the process identifier 17120.
At C:\Users\emckenzie\Documents\Loaders\testLoader.ps1:13 char:13
+ Stop-Process <<<<  $logstashid
+ CategoryInfo          : ObjectNotFound: (17120:Int32) [Stop-Process], ProcessCommandException
+ FullyQualifiedErrorId : NoProcessFoundForGivenId,Microsoft.PowerShell.Commands.StopProcessCommand

Is this a problem in Logstash or Powershell?

Any help would be much appreciated!

Upvotes: 1

Views: 961

Answers (2)

emckenzie
emckenzie

Reputation: 21

I ended up using NSSM to start Logstash as a service instead, and I control NSSM through Powershell.

# You must configure testlogstash using the GUI NSSM provides
$logstashFilepath = "C:\Users\emckenzie\Downloads\nssm-2.24\nssm-
2.24\win64\nssm.exe"
$start = "start testlogstash"
$stop = "stop testlogstash"

$logstashprocess = Start-Process -FilePath $logstashFilepath -ArgumentList 
$start -PassThru

Start-Sleep -s 60

Start-Process -FilePath $logstashFilepath -ArgumentList $stop

Upvotes: 1

cet51
cet51

Reputation: 1226

After reading the comments on the original post I believe there is a solution for you. If you know the program running that needs to stay running until the job is finished:

$logstashprocess = Start-Process -FilePath $logstashFilepath -ArgumentList $logstashArguments -PassThru
$logstashid = $logstashprocess.Id

$Global:IsRunning = $false

Do {
    $process = Get-Process -processname "NameOfProcessHere"
    If ($process){
        $IsRunning = $true
    }else{
        $IsRunning = $false
    }
} While ($IsRunning -eq $true)

Stop-Process -processname "$logstashid"

Let me know if this is helpful, or if i'm not understanding the question.

Upvotes: 0

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