Re: [Zinq-general] Patch to open data.cdb no more than once per second

2009/3/27 Peter Pentchev <[email protected]>:
> On Fri, Mar 27, 2009 at 12:40:50AM +0000, Jose Celestino wrote:
>> Words by Mark Johnson [Thu, Mar 26, 2009 at 07:19:19PM -0500]:
>> > On Thu, Mar 26, 2009 at 7:07 PM, Jose Celestino <[email protected]> wrote:
>> > > Words by Mark Johnson [Thu, Mar 26, 2009 at 06:55:39PM -0500]:
>> > >>
>> > >> The idea is to minimize the per query overhead.  I don't know that
>> > >> trading a mmap/munmap per query for a stat per query would be that
>> > >> great of a trade.  Reopening data.cdb only upon receipt of, say, a
>> > >> SIGHUP, would be even better, but that would *really* surprise people.
>> > >
>> > > Why would іt surprise? It is actualy a good idea.
>> >
>> > It's not how people expect djbdns to behave.
>>
>> Well, maybe, but changing data and makeing would be transparent for the
>> user if make did the HUP after the cdb was in place.
>
> Well, maybe, but changing data on a remote server and rsync'ing wouldn't :)
> Or changing data and running tinydns-data directly from another interface,
> or directly generating the cdb file through another cdb-format-aware
> tool, or... :)

Exactly.  There are perhaps ways to address these scenarios, but this
is really a bigger change than I want to make at the moment.