Disable cache in bind 9.6

[Dmitry Rybin]

Alan Clegg wrote:
> Dmitry Rybin wrote:
>> Matus UHLAR - fantomas wrote:
>>> On 20.01.09 12:49, Dmitry Rybin wrote:
>>>> How to disable cache in bind-9.6? ttl=0 - bad idea.
>>> if you know that setting TTL to 0 is a bad idea, why do yuo think that
>>> disabling a cache in BIND is not a bad idea?
>>>
>> Because under high load cache grows to maximum system size and stop
>> responding to queues. This is known problem.
> 
> This is NOT a "known problem" in 9.6.  Please provide your configuration
> and logs that show the issue that you are having.
> 
> AlanC
> 

this is known problem of all bind's. Bind grows up to 2Gb, become slowly
answer to queries and can't restart, only kill -9. FreeBSD 5.x....7.1,
Linux 2.6.

============
options {
  directory "/etc/namedb";
  max-cache-size 16M;
  max-cache-ttl 3600;
  max-ncache-ttl 1800;
  cleaning-interval 10;
  transfers-in 1000;
  transfers-out 1000;
  transfers-per-ns 100;
  minimal-responses yes;
  allow-recursion {
	xxx.xxx.xxx.xxx;
  };
  recursive-clients 10000;
  clients-per-query 80;
  max-clients-per-query 100 ;

view "world" {
  zone "." {
    type hint;
    file "named.root";
  };

zone "0.0.127.IN-ADDR.ARPA" {
  type master;
  file "localhost.rev";
};

view "view0"{
  max-cache-size 16M;
  match-clients {
    XXX.XXX.XXX.XXX;
  };
  include "net-views/view0.conf";
};

[... skip 48 views ...]

view "view50"{
  max-cache-size 8M;
  match-clients {
    XXX.XXX.XXX.XXX;
  };
  include "net-views/view50.conf";
};