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From Dan Poirier <>
Subject [users@httpd] Re: mod_log_config issue
Date Wed, 27 Jan 2010 20:02:54 GMT
Joe Hammerman <> writes:

> Hello Apache users list.
> We have an issue with mod_log_config; specifically we are trying to pipe log output through
Sed before it goes to Cronolog. The result is that we get no output whatsoever.
> Here is a sample of the directives we are using in our VirtualHost container:
>     CustomLog "| /bin/sed s/[0-9]\\\{1,3\\\}\\\.[0-9]\\\{1,3\\\}\\\.[0-9]\\\{1,3\\\}\\\.[0-9]\\\{1,3\\\},\\\
//g | /usr/bin/sudo -u VEsvc /usr/sbin/cronolog --period=1hours /mnt/export/www/logs/beacon/%Y%m%d/%H/survey_log"
combined env=survey_log
>     ErrorLog "| /bin/sed s/[0-9]\\\{1,3\\\}\\\.[0-9]\\\{1,3\\\}\\\.[0-9]\\\{1,3\\\}\\\.[0-9]\\\{1,3\\\},\\\
//g | /usr/bin/sudo -u VEsvc /usr/sbin/cronolog --period=1hours /mnt/export/www/logs/beacon/%Y%m%d/%H/error_log"
> We have also experimented with writing a wrapper script that performs all three of the
above functions - the result is the same.
> Does anyone have any input? Is what we are attempting possible?

What's the simplest case that doesn't work?  What if you take out the
whole 'sed' command and just use /bin/cat?  Does invoking cronolog with
sudo work when not receiving input piped from another command?  Does it
work with a simpler sed script?

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