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From Jim Albert <>
Subject Re: [users@httpd] Apache dummy connection
Date Thu, 22 Jun 2006 20:16:16 GMT
T. Devergranne wrote:
>>>I have a lot of theses (Apache internal dummy connection), 
>>but I can't 
>>>get rid of them, I don't know where they come from. Any hints ?
>>> - - [09/Mar/2006:08:42:40 +0000] "GET / HTTP/1.0" 200 
>>>15545 "-" "Apache (internal dummy connection)" - - 
>>>[09/Mar/2006:08:42:41 +0000] "GET / HTTP/1.0" 200 15564 "-" "Apache 
>>>(internal dummy connection)" - - [09/Mar/2006:08:42:42 
>>>+0000] "GET / HTTP/1.0" 200 15440 "-" "Apache (internal dummy 
>>>I'm using 2.2.0.
>>Maybe this will help you: 
> I've seen the discussion, but it doesn't help much. 
> Anyone, an way out ?

I've noticed this also starting with Apache2.2.
I see a large number of those internal dummy connection requests during 
an apache graceful restart (SIGUSR1) and at the same time the cpu load 
on the Apache2.2 server maxes out at nearly 100%.

I'm wondering if anyone else sees this high cpu usage with a graceful 
restart of Apache2.2.

My home page (GET /) is dynamically generated (although running under 
mod_perl) but I use the following mod_rewrite rule to make / a very 
uncostly http request when the HTTP_USER_AGENT is "internal dummy request".

RewriteEngine on
RewriteCond %{HTTP_USER_AGENT} ^.*internal\ dummy\ connection.*$ [NC]
RewriteRule ^/$ /small_static_page.html [L]

Can anyone comment or confirm a similar experience with high cpu usage 
during a graceful restart of Apache2.2?

My OS is Linux 2.6.16-1.2133_FC5smp

Jim Albert

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