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From Dirk-Willem van Gulik <>
Subject Re: Additional log file
Date Fri, 08 Feb 2008 15:39:42 GMT

On Feb 8, 2008, at 4:16 PM, Wall, Mick wrote:

> I have a requirement to log some additional information to a  
> separate log
> file.  Can I do this using some of the existing log API's or will I  
> need to
> create my own.

If you have that data in env variables, in the notes table or similar  
(or you can get them there from your modules, mod_perl code) etc-   
then you can simple add a custom log and write it out that way:

	LogFormat "%a %s %t \"%{User-agent}i\"" %{GeoIP}n %{GeoIP_USfield}n % 

will extrat the note called 'GeoIP' from the r->notes table which was  
set by a module. If it comes from some java/backend - you can capture  
a header %{Foo}o header (but the client gets to see that header too).


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