Hello mailing list!

My question is simple, I have a cron job which launch rsync.
But i doubt the rsync cron job will finish before the other start
(every day at 0h00)
Is this ok to have two rsync launched at the same time or do I have to
kill the first one?
And so I got a problem because when I use pidof rsync or cat
/var/run/rsync.pid, I got the PID of the rsync Daemon wich is running
too on the server.

Thank you for your help.