50 million records under one domain using Bind

[Andrew Ferk]

> What are the backend database options available? Is bind-sdb active
> developed and is it production ready?

You can use mysql with dlz.  I have yet to get it successfully
working, but that's another issue.

One of the reasons I wanted to use a database was for the speed
increase.  I would probably look into using dlz.

Maybe someone has a better solution, in which case, I will probably try myself.