Zabbix_get and powershell

[topcek]

Hi,

i have a qustion. I'm trying to achieve monitoring Hyper-V replication with zabbix but nothing what i have tried didn't work.

i did:

write in zabbix_agentd.conf
Userparameter=vm.state,powershell,c:\test.ps1

and contecnt in script is:

$Health = Get-VMReplication
foreach($State in $Health){

if($state.Health -match "Normal"){
$output = 1
}else{

$output = 1
}

}
write-host $output

i get ZBX_NOTSUPPORTED when running zabbix_get -s IP -k vm.state from zabbix server

for testing purposes i have tried to modify last line to write-host "1"

and i get value. after digging in i noticed that i'm unable to run any powershell get- command.

i have tried this:
$Health = "BLABLABLA"
write-host $output
i got
BLABLABLA

so i'm i missing something or is just a bug. version of server and zabbix agent is 2.2.2


any userful hints?

[aib]

1) Check your UserParameter= string. It can contain only(!) one comma.

UserParameter=vm.state,powershell "c:\test.ps1"

2) Use the full path and name of powershell.exe and some additional keys to reduce non important output. (link to thread)

UserParameter=service.discovery,powershell.exe -NoProfile -ExecutionPolicy Bypass -file "C:\Program Files\Zabbix\Service_Discovery.ps1"

[topcek]

Oh, sorry i have mistyped. my user parameter was:

UserParameter=vm.state,powershell.exe -NoProfile -ExecutionPolicy Bypass -file "c:\test.ps1"

so after calling from server with zabbix_get i recieve ZBX_NOTSUPPORTED.

However if i only change in script the main cmdlet GET-VMReplication to something more simple everything works without changing anything in zabbix.

$Health = Get-VMReplication <== Changing this to "BLABLA"
foreach($State in $Health){

if($state.Health -match "Normal"){
$output = 44
}else{

$output = 2
}

}

write-host $output

i would get result 2.

it seems that powershell returns something to zabbix that agent can't handle like null or some value.

I have also tried to convert result to string with | out-string because powershell returns smth. like PSCustomObject type


any other ideas?

[aib]

Do you mind to do some debugging?
1) On the server, where the Zabbix Agent installed, run the command
powershell.exe -NoProfile -ExecutionPolicy Bypass -file "c:\test.ps1"

and check the result.
May be it is something like " 2 " (with leading and trailing spaces)
It will be more simple to convert it to simple Internal number before output.

write-host [int]$output

Sorry if you already try it - it's just from top of my head.

[topcek]

thank you for your information but it doesn't work. i did try also to run batch script and within call powershell with this file test.ps1 to isolate if windows are causing this error. also if i try to call another cmdlet within script instead get-vm and doesn't work either but if i put any random calculation or some st.ring and write it out it works. just like get commands would return some "strange" type because function get- returns type system.pscustomobject and not string. mybe agent doesnt fetch his output and script when agent runs script recieves null which acording to zabbix poor documentation means zbx_notsupported.

any other mybe hints?

[topcek]

around debugging i did try to enable logging of remote commands and put on debug level but i only get running script and zbx_notsupported are there any ohter possibiliteies for debug mode?

[topcek]

OK,

firstly thank you all for participation. I found solution.

The problem was in timeout. So default settings are telling zabbix_agent to wait for script for 3 seconds. But apparently powershell needs more than 3 seconds. so i have increased timeout timer and i can pull informations from powershell.

thank you all.

Regards!