Date: Sat, 30 Mar 1996 03:43:02 -0700 (MST) From: Dave Andersen <angio@shell.aros.net> To: mrcpu@cdsnet.net (Jaye Mathisen) Cc: freebsd-questions@freebsd.org Subject: Re: Apache still and timeouts Message-ID: <199603301043.DAA20878@shell.aros.net> In-Reply-To: <Pine.BSF.3.91.960329154711.1032C-100000@schizo.cdsnet.net> from Jaye Mathisen at "Mar 29, 96 03:48:00 pm"
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Lo and behold, Jaye Mathisen once said:
> The local named would cache some of them I would think as well, it may be
> better to let named worry about it...
>
> I'd be interested in the script if you finish it.
The only downside to that is that you'll suffer a pretty hefty
performance penalty. Yes, the odds are .. somewhat good that named will
cache the successful hits, but you're still stuck using the networking
interface to do lookups (read: slow as hell) instead of reading them from
local memory (infinitely faster. :) and you lose the benefit of being
able to 'flag' unlookupable addresses quickly and efficiently so you
don't do multiple unsuccessful queries - the real bogdown.
Just make sure you've got enough memory in the beast. Even using a
bunch of swap would be faster than a reverse namelookup on the IP.
-Dave Andersen
--
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