[Freeswitch-users] FreeSWITCH load CDR CSV to Mysql, theoretical problem?

I'm using the script on: http://convergence.pk/freeswitch-load-cdr-csv-to-mysql.html which also can be found on the http://wiki.freeswitch.org/wiki/Mod_cdr_csv. I'm having in running every 5 minute. And everything works. But I do have some concern. What if the job suddenly takes more than 5 minutes to complete and another job start, doing the same thing. Couldn't that be a problem and can it be fixed?