[MS4W-Users] issue with httpd.exe - using nearly 100% of cpu

Jeff McKenna jmckenna at gatewaygeomatics.com
Tue Jan 29 09:54:31 EST 2013

Hi Mark,

Hmm that does sound tricky.  I personally never mix MS4W/dll versions on
production servers for my clients for this reason.  If I had to guess I
would check into the Windows services that are started on reboot: I have
been on client's machines before where an IIS service began conflicting
with an Apache service after rebooting, as one was supposed to be
disabled (to avoid port conflicts).

Remember you can always contact me directly for custom MS4W builds for
your production needs.

Thanks for using the MS4W suite.


Jeff McKenna
MapServer Consulting and Training Services

On 13-01-29 10:32 AM, Mark Volz wrote:
> Hello,
> I may have an issue with the apache that is included with the MS4W package.
> My server was restarted late yesterday afternoon, and when I went in this morning it was running extremely slow, which is odd because this is on a new 8 core server with 20 GB of RAM.  It turns out that httpd.exe was using nearly 100% of the computer time.  Does anyone know what could be causing the problem?
> I should mention the server has a complicated set up.  I am running two copies of MS4W, one of them is an older one that is compatible with our older mapping applications  (GeoMOOSE 2.2), and another one another partition that is running the beta version of Mapserver that includes Mapcache.  In addition we have ArcGIS Server which uses IIS.  The server has been stable the last several months.
> Mark Volz
> GIS Specialist

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