Some pointers:
MaxRequestsPerChild 512
This means that after an Apache child process handles
512 requests, it will be killed off (and a replacement will
need to be forked). With 45+ million request per
hour, that's a lot of forking.
Min/MaxSpareServers 512
You are telling Apache that you want between 512
and 512 idle Apache processes. If you have more,
kill them off; less, add more. Can you see the
issue with this? :)
(actually, Apache internally tries to handle
this misconfig by setting Max to 513, but
still, that's a REAL NARROW BAND)
On May 23, 2007, at 1:41 PM, justin wright wrote:
When I use the default settings apache immediately complains that
it reaches the server limit. Therefore, I kept raising the limits
until I reached the configuration listed below and still the CPU
utilization on the apache box is less than 10% (Its a quad AMD box
with plenty of memory). I've spent the past month pouring through
the documents trying to figure out how to configure these
settings. What would you suggest for a high-volume site that can
serve up 45+ million requests in an hour?
----- Original Message ----
From: Jim Jagielski <[EMAIL PROTECTED]>
To: users@httpd.apache.org
Sent: Wednesday, May 23, 2007 12:29:31 PM
Subject: Re: [EMAIL PROTECTED] Re: High volume issues using mod_proxy
(balancer,http,ajp) on Apache 2.2.4 across multiple tomcat 5.5.23
clusters - Configuration issues or bugs?
On May 23, 2007, at 1:23 PM, justin wright wrote:
<IfModule mpm_prefork_module>
StartServers 512
ServerLimit 1024
MaxClients 1024
MinSpareServers 512
MaxSpareServers 512
MaxRequestsPerChild 512
</IfModule>
I would suggest reading at least *some* of the documents
on how to configure Apache. Apache is spending
loads of time thrashing and killing/creating processes
that it's a wonder it's working at all.
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