I have not tried it, but couldn't you do this easier by using the Apache piped logs feature? Just send the log entries via a pipe to a script that filters out any entries you do not want in the log. I am not positive, but your script might even be able to write the entries you filter into a different file.
Example: http://www.sudleyplace.com/pipederrorlogs.html On Tue, Sep 11, 2012 at 5:45 PM, <kmra...@rockwellcollins.com> wrote: > I've always been slightly annoyed with Apache 401 "unauthorized" log > entries > when accessing a Subversion repository. I realize these are part of the > standard authentication "handshake" via the http protocol. > (Always ask anonymously first...) > > I also realize that mod_dav_svn can now provide a custom log file, but I > like > my apache logs. On a busy server, these can get to be tens of gigabytes > per > day. I'm not aware of a way to limit log entries based upon return status > codes... > > As a test, I think I have been able to abuse the rewrite_module to get rid > of these apache 401 log entries and I was wondering if any > Apache/Subversion > gurus could poke holes in why this either doesn't work or shouldn't be > used: > > > <IfModule rewrite_module> > # Do not log authentication required responses > RewriteEngine On > RewriteCond %{REQUEST_METHOD} OPTIONS > RewriteCond %{LA-U:REMOTE_USER} ="" > RewriteCond %{REQUEST_URI} !-U > RewriteRule .* - [Last, ENV=dontlog:1] > </IfModule> > > <IfModule log_config_module> > LogFormat "%h %l %u %t \"%r\" %>s %b" common > CustomLog "logs/access.log" common env=!dontlog > </IfModule> > > > I'm aware the sub-request for the last RewriteCond line is expensive. I'm > hopeful the other RewriteCond lines would short circuit most of the server > accesses. Does Subversion create any connections with something > other than an initial OPTIONS request? I only trivially tested neon. I > added > that condition as a hopeful performance improvement. > > And yes, as I stated above, I realize Subversion can create it's own > custom log, but using that removes the fun in this experiment... > > Kevin R. > -- Thanks Mark Phippard http://markphip.blogspot.com/