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
user-462cf0b6d846@xymon.invalid
*From:*David Baldwin [mailto:user-cbbf693f2c89@xymon.invalid]
*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
user-462cf0b6d846@xymon.invalid <mailto:user-462cf0b6d846@xymon.invalid>
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Tel 02 62147830 Fax 02 62141830 PO Box 176 Belconnen ACT 2616
user-cbbf693f2c89@xymon.invalid Leverrier Street Bruce ACT 2617