Windows Perf Counters with WMI or NCPA

[Box293]

Follow this KB article, it shows you how to update check_wmi_plus.pl

https://support.nagios.com/kb/article.php?id=123

[vAJ]

NCPA can be done, but the spaces and such in PerfCounter names can be a challenge.

Here's an example of my XI arg for check_xi_ncpa_agent:

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-t 'toketoketoke' -P 5693 -M 'windowscounters/PhysicalDisk(0%20C:)/Avg.%20Disk%20Queue%20Length'

[lmiltchev]

Thank you, vAJ!

@krobertson71, let us know if you have any more questions.

[Box293]

Thanks for that @vAJ, I've created a KB article that shows how to monitor performance counters with NCPA:

https://support.nagios.com/kb/article.php?id=491

Also updated this one:

https://support.nagios.com/kb/article.php?id=126

[krobertson71]

Sorry for the very late reply.

This works great. I am hitting a wall with getting back a particular process % of Processor time. How do you specify an Instance in NCPA?

-t 'tokelokeytoker' -P 5693 -M 'windowscounters/Processes(mtxagent.exe)/%2520of%Processor%20time ?? What makes this difficult is if you screw up the syntax you do not get an error back, just an 0c.

Getting closer to the finish line though!

Also /Memory/Pages%2Fsec only returns 0c as well even though there is low paging activity on the remote host.

[vAJ]

Best way I've found is to add the counter you need to PerfMon, then copy the counter config out to a text editor of your choice.

Here's a line from said config:

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	<PARAM NAME="Counter00003.Path" VALUE="\Process(chrome)\% User Time"/>

I take the counter path and add it into the api/windowscounters url for the host to test:

Take what the browser rewrites that as and place that in your service check.

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https://host.domain:5693/api/windowscounters/Process(chrome)/%%20User%20Time

Clear as mud, right?

[rkennedy]

Thanks @vAJ!

That's a great way to do it, as the formatting can be a pain at times.

@krobertson71 - let us know if that helps.

[krobertson71]

It's returning a 0 result. I have this perfmon running on the server and it's always above 5% at a min.

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https://vmassetcore01.dcri.int:5693/api/windowscounters/Process(mtxagent)/%%20User%20Time

I get this in the api return:

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{
  "value": {
    "windowscounters": [
      [
        0.0
      ], 
      "% User Time"
    ]
  }
}

[vAJ]

Are there multiple mtxagent processes? I've not tried monitoring a process CPU util via NCPA yet. I will test it though.

[krobertson71]

No it's just the one process. No multiples.