[Pki-users] Revoking all certificates issued by Dogtag at once

Hi, I have an instance of Dogtag installed on my Fedora 22 server and I wanted to know if there is a way to revoke all the certificates ever issued by my Dogtag CA in one shot. Also, is there any bound/limit to the amount of valid certificates that can be issued by an instance of Dogtag? Thank you, Peter