restructuring/redesigning BIND (was Re: 9.2.5 db causes high cpu?)

[Paul Vixie]

> The new behaviour will then be to answer queries for zones already
> loaded instead of waiting for all zones to finish loading. People
> can order the zones in the config file to get "important" zones
> loaded first.

some people have told me that this behaviour is not new, i.e., that we
do it this way now.  i apologize for my ignorance; bind9 isn't my baby.