Bug#506763: apache2: mod_proxy does not log an error when it hits MaxClients

[Winfried Tilanus <winfried@tilanus.com>]

Package: apache2
Severity: normal

I am using apache2-mpm-prefork (2.2.3-4+etch6), with an proxy configured 
like this:

<Proxy *>
       Order deny,allow
       Allow from all
</Proxy>

ProxyRequests Off
ProxyPass /3/ http://miepie.tilanus.com:80/3/
ProxyPassReverse /3/ http://miepie.tilanus.com:80/3/
ProxyPass /http-bind/ http://miepie.tilanus.com:5280/http-bind/
ProxyPassReverse /http-bind/ http://miepie.tilanus.com:5280/http-bind/

When the amount of connections to proxy exceeds the the amount 
configured by the MaxClients directive in the apache2.conf, apache 
doesn't relay the connections anymore. This happens silently. In order 
to ease troubleshooting, it is desireable that apache2 also warns when 
it hits the MaxClients while proxying requests.

Thanks for looking into this!

Winfried

-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-6-686
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)