[Xymon] Windows PS client svcs data missing
David Baldwin
david.baldwin at ausport.gov.au
Thu May 12 01:41:03 CEST 2011
Scot,
>
> David,
>
>
>
> I was able to catch a system this afternoon that wasn't reporting
> services. I get this back when running the get-wmiobject command:
>
>
>
> PS C:\> Get-WmiObject -Class Win32_Service
>
> Get-WmiObject :
>
> At line:1 char:14
>
> + Get-WmiObject <<<< -Class Win32_Service
>
> + CategoryInfo : InvalidOperation: (:) [Get-WmiObject],
> COMException
>
> + FullyQualifiedErrorId :
> GetWMICOMException,Microsoft.PowerShell.Commands.GetWmiObjectCommand
>
>
>
Looks like it's a problem with your system.
>
> One other thing… I noticed that whenever the PS client runs it takes
> the CPU up to 100% for 5-15 seconds or so on many of the systems it's
> installed on. I'm already getting push back from other systems admins
> because of that. I imagine many people will be complaining about it
> sooner or later, that's kind of a bad thing. J
>
>
>
> Off to Google that…
>
>
>
I don't have a lot of experience with WMI, but it seems like it can be a
pretty heavyweight way to get fairly trivial information. There may be
some tuning or checks that can be done to make sure it's running as best
it can, but a google search or others be able to give better advice than I.
It would also pay to watch the memory footprint of the client long-term.
I've tried to do as much preemptive garbage collection as I can, but I'm
not convinced there aren't leaks, especially interfacing with COM
objects, which given the error above makes WMI a big candidate. I
wouldn't be surprised if some of the WMI data could be gained by
alternative means such as poking about in the registry, but I don't have
time to investigate at present.
David.
>
> Scot Kreienkamp
>
> Senior Systems Engineer
>
> skreien at la-z-boy.com
>
>
>
> *From:*David Baldwin [mailto:david.baldwin at ausport.gov.au]
> *Sent:* Monday, May 09, 2011 9:31 PM
> *To:* Scot Kreienkamp; xymon at xymon.com
> *Subject:* Re: [Xymon] Windows PS client svcs data missing
>
>
>
> On 10/05/11 2:09 AM, Scot Kreienkamp wrote:
>
> Hi everyone,
>
>
>
> I've run into a problem with the Windows Powershell client
> intermittently omitting service data on Win2008. Here's the relevant
> parts of the client data file:
>
>
>
> Microsoft Windows Server 2008 R2 Standard (build 7600)
>
> ---snip---
>
> Persistent Routes:
>
> None
>
> [ifstat]
>
> fe80::619f:8c8:bf22:6ca5%11 2254617444 2999570366
>
> 10.100.1.211 2254617444 2999570366
>
> ::1 0 0
>
> 127.0.0.1 0 0
>
> [svcs]
>
> Name StartupType Status
> DisplayName
>
> [uptime]
>
> sec: 8168297
>
> 94 days 12 hours 58 minutes 17 seconds
>
> Bootup: 20110203213923.713291-360
>
> [who]
>
> SESSIONNAME USERNAME ID STATE TYPE DEVICE
>
> ---snip---
>
>
>
> As you can see, the svcs portion is empty. I already updated the
> client to the latest PS client files available and it still is
> happening. I'm not a programmer so I'm not sure how I can help
> troubleshoot this, but I'm willing to help in any way I can.
>
> services information is gathered from WMI. The builtin powershell
> "get-services" doesn't return sufficient information.
>
> Try the following:
>
> open a powershell window (powershell.exe lives in
> C:\WINDOWS\system32\windowspowershell\v1.0)
>
> Get-WmiObject -Class Win32_Service
>
> Try running it a few times. Is it slow, or does it sometimes not
> return any information?
>
> Also, if you look at the Client data report (link at the bottom of
> various pages - cpu, disk, procs, svcs), do you see sections for
> [WMI:Win32...] towards the bottom of the report. There should be:
>
> WMI:Win32_OperatingSystem
> WMI:Win32_ComputerSystem
> WMI:Win32_BIOS
> WMI:Win32_Processor
> WMI:Win32_PhysicalMemory
> WMI:Win32_LogicalDisk
> WMI:Win32_QuickFixEngineering
> WMI:Win32_Product
>
>
> If these are missing there may be a problem with the WMI service. Try
> restarting it in the first instance.
>
> David.
>
>
>
> Thanks!
>
>
>
> Scot Kreienkamp
>
> skreien at la-z-boy.com <mailto:skreien at la-z-boy.com>
>
>
>
>
>
>
>
>
>
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>
>
>
>
> --
> David Baldwin - IT Unit
> Australian Sports Commission www.ausport.gov.au <http://www.ausport.gov.au>
> Tel 02 62147830 Fax 02 62141830 PO Box 176 Belconnen ACT 2616
> david.baldwin at ausport.gov.au <mailto:david.baldwin at ausport.gov.au> Leverrier Street Bruce ACT 2617
>
>
>
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--
David Baldwin - IT Unit
Australian Sports Commission www.ausport.gov.au
Tel 02 62147830 Fax 02 62141830 PO Box 176 Belconnen ACT 2616
david.baldwin at ausport.gov.au Leverrier Street Bruce ACT 2617
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