To duplicate just open phpmyadmin and go to a database table with more than 1 row. Click on a column header to sort values by that column. You will receive the Kloxo 403 error "Kloxo-MR: error 403 found!"
These are the things I have ruled out already.
File permissions and ownership OK.
-rw-r--r-- 1 lxlabs lxlabs 59844 Dec 5 01:44 sql.php
Tried adjusting haiwatha url length up with no success.
MaxUrlLength = 655360
Tried adjusting php.ini per hiawatha's recommended settings.
cgi.fix_pathinfo = 0
cgi.rfc2616_headers = 1
After switching Kloxo-MR to use nginx it works fine. So it's not php settings or phpMyAdmin issue, but rather something in Hiawatha. Hoping you can help.