What DNS server and backend should I use to update 20 million records daily?

Question

Domain Name System

Good afternoon!
There is a text file of the form
www.site.com A 192.168.0.1
What DNS server and with what backend can be set on this file?
It is not possible to drive everything into mysql or bind format. records are updated every day.

Answer 1

Way found. PowerDNS + pipe backend