Help - Bind 9.3.2 use a lot of memory
Mark Andrews
Mark_Andrews at isc.org
Wed Mar 8 08:47:46 UTC 2006
> Hi All
>
> I upgrade the cache only dns server to bind 9.3.2. All of them is normal but
> it use a lot of memory, the named use 1.2G memory, is it normal ?
>
> load averages: 0.41, 0.42, 0.43
> dns3 16:27:54
> 38 processes: 36 sleeping, 1 stopped, 1 on cpu
> CPU states: 80.2% idle, 14.3% user, 5.5% kernel, 0.0% iowait, 0.0% swap
> Memory: 2.0G real, 281M free, 1.3G swap in use, 4.3G swap free
>
> PID USERNAME THR PR NCE SIZE RES STATE TIME FLTS CPU COMMAND
> 7839 named 7 43 0 1.2G 1.2G sleep 26.4H 0 21.60% named
>
> the cleaning-interval is 3 days.
The default cleaning interval is 1 hour. You really don't want to
wait 3 days to clear expired records from the cache.
> i change it to default , reload the config by rndc and flush the database by
> rndc but the database size cannot decrease.
>
> Is it normal ? Please help
Yes. Once memory is allocated to named it stays allocated. It
will be reused however.
> thx very much
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews at isc.org
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