Re: [users@httpd] Apache dummy connection

[Jim Albert <jim@xxxxxxxxxxxxx>]

Jim Albert wrote:
> 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 ?
> > > >
> > > >
> > > > 192.168.1.20 - - [09/Mar/2006:08:42:40 +0000] "GET / HTTP/1.0" 200 
> > > > 15545 "-" "Apache (internal dummy connection)" 192.168.1.20 - - 
> > > > [09/Mar/2006:08:42:41 +0000] "GET / HTTP/1.0" 200 15564 "-" "Apache 
> > > > (internal dummy connection)" 192.168.1.20 - - [09/Mar/2006:08:42:42 
> > > > +0000] "GET / HTTP/1.0" 200 15440 "-" "Apache (internal dummy 
> > > > connection)"
> > > >
> > > > I'm using 2.2.0.
> > >
> > >
> > > Maybe this will help you: 
> > > http://www.archivatna.com/t52552-internal-dummy-connection.html
> >
> >
> >
> >
> > 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

In addition I see the following when doing a graceful restart of httpd:
[Mon Jun 26 14:17:14 2006] [notice] Graceful restart requested, doing 
restart
[Mon Jun 26 14:17:15 2006] [error] (9)Bad file descriptor: 
apr_socket_accept: (client socket)
[Mon Jun 26 14:17:59 2006] [notice] Digest: generating secret for digest 
authentication ...
[Mon Jun 26 14:17:59 2006] [notice] Digest: done

I find very little on what the "Bad file descriptor: apr_socket_accept" 
error means.

I am using Apache/2.2.0 on Linux 2.6.16-1.2133_FC5smp


--
Jim Albert

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