BIND 9 crapping out at 510 MB

Vinny Abello vinny at
Fri Oct 20 16:00:50 UTC 2006

At 10:34 AM 10/20/2006, Len Conrad wrote:
>fbsd 4.11
>BIND 9.3.2
>recursive-only named.
>On two different machines, 2 or 3 times each, when the named
>footprint reaches about 510 MB,
>queries fail with SRFVAIL,
>rndc flush and rndc stop don't work,
>rndc status does work
>kill named-pid  doesn't work
>we must "kill -KILL named-pid"
>To try to prevent the problem, we have added
>max-cache-ttl 43200
>to try to flush records at 12 hours max.


You likely are running into the default value of a maximum of 512MB 
per process in FreeBSD. Run limits and check to see. You need to make 
modifications to the /boot/loader.conf file to increase it. More 
information can be found in the FreeBSD handbook on adjusting these 
values. Just take care not to adjust them to be too large or your 
system may have problems booting.

Vinny Abello
Network Engineer
Server Management
vinny at
(973)300-9211 x 125
(973)940-6125 (Direct)
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