I Commented out custom_log in
/etc/httpd/conf/httpd.conf but Apache still outputs access_log in
How can I disable access_log?
Can you check this and see if it helps you or not.
lsof | grep /var/log/httpd/access_log
Once you get the pid, grep it with ps and see the time, is it running after service reload ?
This may help to see if the path it still accessed by the application (even after reload)