[nsd-users] reloading NSD zone configuration

[Arnt Gulbrandsen]

Robert Martin-Legène writes:
> I know I make it sound very simple, and it isn't -- But it should be :-)

NSD currently ties this to updating and removing zones.

IMO, removing zones is not at all time-critical. It's okay if zones stay 
active for a few hours extra. Updating and adding zones can be much 
more pressing.

Maybe ignoring zones makes the problem simpler... e.g. nsd could load a 
supplementary database. If a server serves, say, 10k zones, loading a 
hundred supplements into RAM won't be much of a problem (and it saves 
compiling 10k zone files because one changed). Eventually nsd has to 
restart with freshly compiled database, of course.

Arnt