Date: Fri, 09 Feb 2007 10:00:05 +0200 From: Artis Caune <Artis.Caune@latnet.lv> To: freebsd-net@freebsd.org Cc: Steven Bens <steven@unix-solutions.be>, Javier Henderson <javier@kjsl.com> Subject: Re: Serious Bind issue Message-ID: <45CC2A05.3010801@latnet.lv> In-Reply-To: <45CB964C.8090409@FreeBSD.org> References: <20070208092346.072F513C47E@mx1.freebsd.org> <45CB8C33.7020608@FreeBSD.org> <DFB7F010-D084-45EB-AE11-B6083424EEC6@kjsl.com> <45CB964C.8090409@FreeBSD.org>
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Doug Barton wrote:
> Javier Henderson wrote:
>
>> FWIW, I was running BIND 9.3.2 for a while and in awe at the amount of
>> memory it would use, and how it would go CPU bound after it hit any
>> operating system imposed memory quotas.
>
> Many people have reported this problem, but no one has been able to
> follow up on getting it fixed.
>
>> I went back to BIND 8.latest, and my problems went away.
>
> ... but only for the short term. Development has stopped on BIND 8,
> and I'm planning to deprecate the BIND 8 ports now that FreeBSD 4.x
> has been EOL'ed. BIND 9 is not even the wave of the future, it's now
> the present, and if it's not working for you it's incumbent on you to
> contact the bind-users@isc.org list and do what you can to help
> diagnose this problem, and test the fixes.
>
> Doug
>
We have no problem with BIND 9.3.x. on 2.4 Xeon, 1G RAM:
Getting ~1.6K queries per second.
CPU: 11.5% user, 0.0% nice, 0.0% system, 1.9% interrupt, 86.5% idle
PID UID THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
613 53 1 96 0 747M 746M RUN 0 62.7H 37.74% named
# /boot/loader.conf
kern.maxdsiz=1073741824
# named.conf
max-cache-size 512M;
recursive-clients 8192;
and BIND is compiled with following changes:
DNS_CACHE_CLEANERINCREMENT=256 in lib/dns/cache.c
ISC_MEM_USE_INTERNAL_MALLOC=1 in lib/isc/mem.c
And we get 1-3ms responses even while BIND is periodicaly cleaning cache
and CPU is always idle.
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