put something like this in your /etc/apache2/sites-available/my-project file: 
<VirtualHost foo.bar.baz.bla>
   [...]    
   ErrorDocument 500 /error/500
   PerlModule MyProject::ErrorHandler
   [...]
   <Location /error>
      [...]
      SetHandler perl-script
      PerlResponseHandler MyProject::ErrorHandler
   </Location
</VirtualHost>

[download]
notice that the /error directory must not exist. it's simply a placeholder in the config file.

how the ErrorHandler package should look like, and on how to pass the error messages to it, take a look at the mod_perl2 documentation, especially the $r->err_headers_out, $r->notes, and $r->pnotes methods. basic information on how to write a response handler you will find at http://perl.apache.org/docs/2.0/user/coding/coding.html.

In reply to Re: mod_perl: redirecting error message by TOD
in thread mod_perl: redirecting error message by artemave

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