APEL_PUBLISH_USER_DN="yes"
and reconfigure your MON box. This will change the parser configuration file
/opt/glite/etc/glite-apel-publisher/publisher-config-yaim.xml
replacing this line
with this one
this will affect only on the new records.
If you want to republish everything you need to replace in the same file
<Republish>missing</Republish>
with this line using the apropriate dates
and publish a chunk of data at the time. The documentation suggests one month at the time to avoid to run out of memory. When you have finished put back the line
<Republish>missing</Republish>