Have you looked at pgLOGd? Or its successor, dbWebLog?

Both of these claim to offer low-overhead robust logging.

Drew

On Sep 22, 2006, at 7:52 AM, Jonathan Vanasco wrote:

>
> On Sep 22, 2006, at 6:33 AM, Sean Davis wrote:
>
>> You can create a simple logger under mod_perl that logs to a
>> database directly
>> using DBI. You would, of course, want to benchmark anything like
>> this, but
>> it isn't hard to code one.

>
> No DBI. This is a high traffic server. I can't handle the
> overheard of the DB. I need to write to file, then batch process
> stuff later. Using a DB cuts my performance down to 1/15th of what
> apache can/needs to handle.
>
>
> On Sep 22, 2006, at 6:38 AM, Philip M. Gollucci wrote:
>> mod_log_sql (written in C) works in both httpd 1.x and 2.x.
>> Its been "professionally" benched to be almost non existant overhead.

>
> i saw it earlier. it uses mysql, which means i'd need to get
> another dedicated machine to run it on. my db box is pg, my webapp
> boxes have pg for some support services. running mysql + pg on a
> box = io nightmare
> I liked the preserve mode. I thought about running it off a dead
> connection to force that, then regexing the contents to work with PG.
>
> On Sep 22, 2006, at 3:34 AM, James Smith wrote:
>> Can you get away with using the apache logs to do this - use
>> mod_log_config and add save your information in a sub_process_env
>> variable - and add a %{my_env_var} entry into the logging directive?

>
> Brilliant. That will totally do it.