recursing stop at about 1000 clients

[Dmitry Rybin]

I've test next configuration, which improve recursion performance of
isc-bind frontend.

bind listen on only on external interface and forward all recursive
queries to 127.0.0.1
=== named.conf ===
listen-on { 1.1.1.1; };

forward only;
        forwarders {
                127.0.0.1;
        };
=== named.conf ===

Test without forward:
10000 q -  23.362 s
rndc status 280/0/500
LA: 2

Test with
10000 q -  24.162 s
rndc status 53/0/500
LA: 1.33

powerdns-recursor 3.2 listen on loopback interface.


sockstat:
USER     COMMAND    PID   FD PROTO  LOCAL ADDRESS FOREIGN ADDRESS
pdns_recursor pdns_recur64672 4 udp4 127.0.0.1:53       *:*
pdns_recursor pdns_recur64672 5 tcp4 127.0.0.1:53       *:*
bind     named      1004  25 tcp4    1.1.1.1:53         *:*
bind     named      1004  513 udp4   1.1.1.1:53         *:*


21.07.2010 03:31, Robert Mibus пишет:
> Check that your underlying OS/environment is not limiting you - eg., you
> may be getting limited to 1024 file descriptors via ulimit.
> 
> Robert.
> 
> On 15/07/2010, at 7:48 PM, Kebba Foon wrote:
> 
>> i did i set my recursive-clients to 10000 but it does not help.
>>
>> On Thu, 2010-07-15 at 20:21 +1000, Noel Butler wrote:
>>> UDP
>>
>> _______________________________________________
>> bind-users mailing list
>> bind-users at lists.isc.org <mailto:bind-users at lists.isc.org>
>> https://lists.isc.org/mailman/listinfo/bind-users
> 
> 
> -- 
> Robert Mibus <rmibus at internode.com.au <mailto:rmibus at internode.com.au>>
> Systems Operations, Internode
> 
> 
> 
> 
> _______________________________________________
> bind-users mailing list
> bind-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/bind-users


-- 
Рыбин Дмитрий
Эксперт по аварийному восстановлению сервисов
Отдел систем ШПД
Департамент ИТ- инфраструктуры
Группа компаний Вымпелком
Tel: +7(495) 7871000