Re: Question about a high load BIND server setup...

Thanks.

I put those changes in. I'll see how it behaves over the next day.

One thing I noticed though, I can't run ifconfig now:

cache01# /sbin/ifconfig -a
ifconfig: socket(family 2,SOCK_DGRAM): No buffer space available

Would that have anything to do with those sysctl settings.

-John

On Thu, 31 Aug 2006, Jaco Engelbrecht wrote:

hi John,

On Wed, Aug 30, 2006 at 02:04:10PM -0400, John Von Essen wrote:
I just upgraded to 9.3.2 today. I have been having memory issues. For
starter, when the named pid grows res mem to around 500m it craps out and
stops resolving. The tentative fix was to restart bind every night at 2am.

However, today, the res mem grow from 25m at startup to 500m in about 4
hours. Quicker then usually, so I thought maybe there was a memory leak,
and thats why I upgraded to the latest version of bind.

Any ideas?

Build bind with its internal memory allocator. To to do this, change
CONFIGURE_ARGS in /usr/ports/dns/bind9/Makefile to read like:

--
CONFIGURE_ARGS= --localstatedir=/var --disable-linux-caps \
--with-randomdev=/dev/random \
STD_CDEFINES=-DISC_MEM_USE_INTERNAL_MALLOC=1
--

make clean
make WITH_PORT_REPLACES_BASE_BIND9=YES
make install


/etc/sysctl.conf settings:

net.inet.raw.recvspace=128000
net.inet.udp.recvspace=256000
net.inet.tcp.sendspace=128000
net.inet.tcp.recvspace=128000
net.inet.tcp.inflight_enable=1
kern.ipc.maxsockbuf=256000
kern.ipc.somaxconn=2048
net.inet.ip.intr_queue_maxlen=128

Jaco

--
bje@xxxxxxxxxxxxxxxxxx
the faculty of making fortuante discoveries

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