FAQ
Hi Dan,
If we replaced Sed with Cat, I'm a little confused as to what we would be catting; there's a stream coming in, right?

To your second question - yes, logging is fully functional with sudo

To your final question - no, even with a sed command that performs no actions, no logging information is generated.

-----Original Message-----
From: news On Behalf Of Dan Poirier
Sent: Wednesday, January 27, 2010 12:03 PM
To: users@httpd.apache.org
Subject: [users@httpd] Re: mod_log_config issue

Joe Hammerman <jhammerman@videoegg.com> 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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postedJan 27, '10 at 5:35p
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