Empty IP when forwardfor enabled

2009-01-18 Thread Rodrigo 
Hi,

I've setup two frontends balanced with Haproxy 1.3.15.7 (excellent software)
in another server:

   Load balancer
  / \
/\
   /  \
Frontend 1Frontend 2

I have enabled "option forwardfor". I have set LogFormat in Apache
configuration file as follows:

LogFormat "%{X-Forwarded-For}i  %l %u %t \"%r\" %>s %b \"%{Referer}i\"
\"%{User-Agent}i\"" combined

but many times the IP field appears empty. I've read on this mailling list
that it has something to do with KeepAliveTimeout on Apache. I rised up it
from 6 to 15, but no luck.

How could I fix this?

Thank you

Re: Empty IP when forwardfor enabled

2009-01-18 Thread Rainer Sabelka 
On Monday 19 January 2009 03:19:51 Rodrigo wrote:
> Hi,
>
> I've setup two frontends balanced with Haproxy 1.3.15.7 (excellent
> software) in another server:
>
>Load balancer
>   / \
> /\
>/  \
> Frontend 1Frontend 2
>
> I have enabled "option forwardfor". I have set LogFormat in Apache
> configuration file as follows:
>
> LogFormat "%{X-Forwarded-For}i  %l %u %t \"%r\" %>s %b \"%{Referer}i\"
> \"%{User-Agent}i\"" combined
>
> but many times the IP field appears empty. I've read on this mailling list
> that it has something to do with KeepAliveTimeout on Apache. I rised up it
> from 6 to 15, but no luck.
>
> How could I fix this?

You probably need "option httpclose".

-Rainer

Re: Empty IP when forwardfor enabled

2009-01-18 Thread Patrick Viet 
On Mon, Jan 19, 2009 at 3:19 AM, Rodrigo  wrote:

> LogFormat "%{X-Forwarded-For}i  %l %u %t \"%r\" %>s %b \"%{Referer}i\"
> \"%{User-Agent}i\"" combined
>
> but many times the IP field appears empty. I've read on this mailling list
> that it has something to do with KeepAliveTimeout on Apache. I rised up it
> from 6 to 15, but no luck.
>
> How could I fix this?

Hi Rodrigo

Use mod_rpaf, normal log config, and you'll be fine.
The variable doesn't appear in the next requests because haproxy
doesn't handle keepalive yet. So next requests are passed unchanged.

Or as suggested Rainer, don't use keepalive : option httpclose. But
that's a lower performance (for the end-user) thing : IE gets very
slow without keepalive.

--
  Patrick