$age = 1500;
Start-Sleep -Milliseconds 4840
$Output = 'Parameter.Name=' + $age
echo $Output

Currently working method:

Agent Conf:
ExternalParametersProvider=powershell.exe C:\NetXMS\script\ReturnInfo.ps1:1800

ReturnInfo.ps:

$DataFile = "C:\NetXMS\script\output.txt"

$Array = "";

if (Test-Path -Path $DataFile) {

    $Content = Get-Content $DataFile
    $Array = $Content.split('|');

}


return $Array

Output.txt is generated from different script that is running with task scheduler.

ExternalParametersProvider=powershell.exe -executionpolicy bypass -c "C:\NetXMS\script\ReturnInfo.ps1":1800

Without the quotes, I'm not sure what NetXMS will make out of your C**:**, considering the colon is a separator.

Your original ExternalParameter did not escape the $ character, which needs to be double up, e.g. like this:

ExternalParameter=Custom.Script:powershell -Command "& {Get-ChildItem 'path' | Where { $$_.PSIsContainer } | Sort CreationTime | Select -First 1 | Foreach-Object {$$dtdiff = (New-TimeSpan ($$_.LastWriteTime) $$(Get-Date))}; write-host $$dtdiff.days}"

$PSVersionTable:

Name                           Value
----                           -----
PSVersion                      4.0
WSManStackVersion              3.0
SerializationVersion           1.1.0.1
CLRVersion                     4.0.30319.42000
BuildVersion                   6.3.9600.16406
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0}
PSRemotingProtocolVersion      2.2

Currently i have setup where i run PS script with task scheduler and save result into txt file. Then with netxms agent i run a script that reades value out of txt file. That way it stays well under 1 sec runtime and works perfectly. Currently testing in 8 different machines.

ExternalParametersProvider=powershell.exe C:\NetXMS\script\ReturnInfo.ps1:1800

Script:

$age = 1500;
Start-Sleep -Milliseconds 4840
$Output = 'Parameter.Name=' + $age
echo $Output

if script ran 4835 ms or more then no result to agent. Anything less and agent received value.

Also "The pipe has been ended." doesent mean error, it comes with 0 or 1 value.

Could that mean script or agent error ? It seems script runs about 5-6 seconds as usual. Also if someone is decent at powershell maybe there is somthing wrong with script itself? I am very beginner in PS

2020.01.14 19:49:10.356 *D* [                   ] ProcessExecutor::execute(): process "CMD.EXE /C powershell.exe C:\NetXMS\script\test.ps1" started
2020.01.14 19:49:10.356 *D* [                   ] ParamProvider::poll(): started command "powershell.exe C:\NetXMS\script\test.ps1"
2020.01.14 19:49:10.357 *I* [                   ] NetXMS Agent started
2020.01.14 19:49:15.569 *D* [                   ] ProcessExecutor::readOutput(): stopped on GetOverlappedResult (The pipe has been ended.)
2020.01.14 19:49:15.569 *D* [                   ] ParamProvider::poll(): command "powershell.exe C:\NetXMS\script\test.ps1" execution completed, 0 values read

command "powershell.exe C:\test3.ps1" execution timeout (70 seconds)

Can you increase debug level to 7 and attach the log.

From agent log:

2020.01.14 09:33:34.573 *I* [                   ] NetXMS Agent started
2020.01.14 09:33:34.575 *D* [                   ] ProcessExecutor::execute(): process "CMD.EXE /C powershell.exe C:\NetXMS\script\test.ps1" started
2020.01.14 09:33:34.575 *D* [                   ] ParamProvider::poll(): started command "powershell.exe C:\NetXMS\script\test.ps1"
2020.01.14 09:33:39.852 *D* [                   ] ParamProvider::poll(): command "powershell.exe C:\NetXMS\script\test.ps1" execution completed, 0 values read

Agent conf file:

#
# NetXMS agent configuration file
# Created by agent installer at Wed Sep  4 14:38:01 2019
#

MasterServers = ip
ConfigIncludeDir = C:\NetXMS\etc\nxagentd.conf.d
LogFile = C:\NetXMS\log\netxms-agent.log
FileStore = C:\NetXMS\var
SubAgent = winperf.nsm
SubAgent = filemgr.nsm
DebugLevel = 5
ExternalParameterProviderTimeout = 60

ExternalParametersProvider=powershell.exe C:\NetXMS\script\test.ps1:300

Script after updating PowerShell to ver 4:

$folder = Get-ChildItem 'D:\a8becad8-6be2-4164-a405-dea4052b3720' -Directory |
    Sort LastWriteTime |
    Select -First 1

$age = ([datetime]::Now - $folder.LastWriteTime).TotalHours
#$age = ([datetime]::Now - $folder.LastWriteTime).Days


if($age -ige 1)
{

    $Output = 'Parameter1=' + $age

}else{

    $Output = 'Parameter1=1'

}

echo $Output

When i change path variable in script to count smaller folder where result will be instant, instead of few seconds then agent gets the value.

Even updated to latest version today.

This time i tryed with ExternalParametersProvider:

Agent Conf

MasterServers = ip
ExecTimeout = 10000
ConfigIncludeDir = C:\NetXMS\etc\nxagentd.conf.d
LogFile = C:\NetXMS\log\netxms-agent.log
FileStore = C:\NetXMS\var
SubAgent = winperf.nsm
SubAgent = filemgr.nsm
DebugLevel = 5

ExternalParametersProvider=powershell.exe C:\NetXMS\script\test2.ps1:60

Script: Get-ChildItem 'D:\test\609920fa-6243-4587-b33c-b73961130e04' | Where { $_.PSIsContainer } | Sort LastWriteTime | Select -First 1 | Foreach-Object {$age = (New-TimeSpan ($_.LastWriteTime) $(Get-Date)); $out = 'Parameter1=' + $age.days; echo $out}

Agent Debug log:

2020.01.12 19:17:10.703 *D* [                   ] ProcessExecutor::execute(): process "CMD.EXE /C powershell.exe C:\NetXMS\script\test2.ps1" started
2020.01.12 19:17:10.703 *D* [                   ] ParamProvider::poll(): started command "powershell.exe C:\NetXMS\script\test2.ps1"
2020.01.12 19:17:22.825 *D* [                   ] ParamProvider::poll(): command "powershell.exe C:\NetXMS\script\test2.ps1" execution completed, 0 values read

When i run command manualy i get response Parameter1=114

CMD.EXE /C powershell.exe C:\NetXMS\script\test2.ps1

Why doesent netxms get that value ?

EDIT: when testing with smaller ammount of files it does return a value. When testing folder with ~82000 sub folders where script runs about ~6 seconds then agent gets result 0, manualy running script works ? Any fix for that ?