Hi Nick,
Thanks for the reply. The configs are identical on all three
machines; these servers just serve up a few custom ASP scripts to relay
information from the field to the backoffice (via a custom software
package that uses HTTP requests to send & retrieve the data). In fact,
there's not enough going on that it should be straining the machine at
all, but even without the ASP module (SunOne) installed, the behavior of
this machine is still such that after a few hundred requests, the entire
system is unresponsive until the Apache service is stopped. I just tried
turning KeepAlive requests off, but got the same results. I ran ab with
5000 requests and a concurrency of 3, and within about 30 seconds (about
500 requests) the entire machine stopped responding, though neither CPU
usage nor memory usage appear to spike. Any other ideas? Again, thanks.
-Jim
Nick Wilson wrote:
If the hardware is relatively the same id say start by checking the
differences in the configs. What MPM are you running? Do you have
keepalives on? On a server that experiences many hits I found better
results in turning keepalives off or setting the max keepalive timeout
to <=5. Are you noticing anything odd in the error log such as crashing?
Take a look here for a few tips as well:
http://httpd.apache.org/docs/2.0/misc/perf-tuning.html
-Nick
-----Original Message-----
From: Jim Keller [mailto:[EMAIL PROTECTED]
Sent: Wednesday, July 26, 2006 9:55 PM
To: users@httpd.apache.org
Subject: [EMAIL PROTECTED] Apache 2.0.55 bringing Win2k3 to a halt
Hey all,
I currently added a new server running Win2k3 server standard,
Apache 2, and a decent set of hardware specs (2.8ghz xeon, 1GB ram). I
currently have two other machines running Apache 2 on the same setup
without any issues. In fact, they run quite reliably. However, I'm
having some strange issues with this newest server and was wondering if
someone could shed any light on the problem. Essentially, if Apache is
serving even a light or moderate amount of requests, the machine will
grind to a halt (taking minutes just to process a login, seconds to
respond to mouse clicks, etc) until the Apache service is stopped. I can
reproduce this behavior every time by using ab to send some (maybe 5000)
requests, and the machine stops responding, including no longer handling
HTTP requests, about halfway through the benchmark, even with a
concurrency of only one or two. I've tried uninstalling and reinstalling
Apache, running with a completely fresh config, and also tried using
version 2.0.58. I would upgrade to 2.2, but ultimately this machine
needs to run SunOne ASP, which does not currently support Apache 2.2.
However, even with SunOne completely uninstalled and with a fresh
httpd.conf, the slowdown issue is still present. I've tried playing with
ThreadsPerChild and MaxRequestsPerChild, but to no avail. I've also
tried disabling all unnecessary services on the machine, installing all
Windows Updates, and of course rebooting many times.
Any help would be greatly appreciated. Thanks.
-Jim Keller
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