I ran process explorer and looked at the handles for the System process. The
vast majority of the handles are of type "Key". I can find them in the
registry. I took two at random from process explorer and exported the registry
branch for them below.
## EXAMPLE 1: ##
Key Name:
HKEY_CLASSES_ROOT\CLSID\{9F074EE2-E6E9-4d8a-A047-EB5B5C3C55DA}
Class Name: <NO CLASS>
Last Write Time: 2/28/2012 - 1:26 AM
Value 0
Name: <NO NAME>
Type: REG_SZ
Data: HwTextInsertion Class
Key Name:
HKEY_CLASSES_ROOT\CLSID\{9F074EE2-E6E9-4d8a-A047-EB5B5C3C55DA}\InprocServer32
Class Name: <NO CLASS>
Last Write Time: 2/29/2012 - 4:05 AM
Value 0
Name: <NO NAME>
Type: REG_EXPAND_SZ
Data: %CommonProgramFiles%\microsoft shared\ink\tiptsf.dll
Value 1
Name: ThreadingModel
Type: REG_SZ
Data: Apartment
Key Name:
HKEY_CLASSES_ROOT\CLSID\{9F074EE2-E6E9-4d8a-A047-EB5B5C3C55DA}\ProgID
Class Name: <NO CLASS>
Last Write Time: 2/29/2012 - 4:05 AM
Key Name:
HKEY_CLASSES_ROOT\CLSID\{9F074EE2-E6E9-4d8a-A047-EB5B5C3C55DA}\Server
Class Name: <NO CLASS>
Last Write Time: 2/29/2012 - 4:05 AM
## EXAMPLE 2: ##
Key Name:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{80FF6842-51A9-4959-B3B9-EE4DCBFD7740}
Class Name: <NO CLASS>
Last Write Time: 2/28/2012 - 12:07 AM
Key Name:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{80FF6842-51A9-4959-B3B9-EE4DCBFD7740}\Programmable
Class Name: <NO CLASS>
Last Write Time: 12/13/2010 - 12:27 PM
Key Name:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{80FF6842-51A9-4959-B3B9-EE4DCBFD7740}\InprocServer32
Class Name: <NO CLASS>
Last Write Time: 2/29/2012 - 3:05 AM
Key Name:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{80FF6842-51A9-4959-B3B9-EE4DCBFD7740}\ProgID
Class Name: <NO CLASS>
Last Write Time: 2/29/2012 - 3:05 AM
Key Name:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{80FF6842-51A9-4959-B3B9-EE4DCBFD7740}\Server
Class Name: <NO CLASS>
Last Write Time: 2/29/2012 - 3:05 AM
## END EXAMPLES ##
A common thread I notice when looking through the keys is InprocServer32.
Adam Bruss
Senior Development Engineer
AWR Corporation
11520 N. Port Washington Rd., Suite 201
Mequon, WI 53092 USA
P: 1.262.240.0291 x104
F: 1.262.240.0294
E: [email protected]
W: http://www.awrcorp.com
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of dennis jenkins
Sent: Tuesday, February 28, 2012 4:01 PM
To: [email protected]
Subject: Re: [GENERAL] accumulating handles problem on machine running
postgresql
On Tue, Feb 28, 2012 at 8:48 AM, Adam Bruss <[email protected]> wrote:
> The handles persist through restarting the postgresql service and restarting
> the IIS server. The handles are accumulating on the System process. I think
> the handles are created when the web service is accessed but that would mean
> the IIS worker processes would have responsibility and they don't seem to.
> Recycling the worker processes in IIS does nothing. And the worker processes
> have their own process w3wp.exe which never accumulate handles. It's probably
> not a postgresql thing or other people would be seeing it.
>
Use "process explorer" from sysinternals / microsoft (google for it)
to see what these handles are for (pipes, files, events, mutants,
desktops, winstations (ok, probably not those), etc...
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