Can we quit pretending that the newest versions of bind aren't memory
hogs? We shouldn't have to provide the technical details as to why the
newest versions of bind use so much ram. We don't know. We're just end
users. However, with millions of zone entries (used as an ad blocking DNS
server) like:
zone ad-assets.futurecdn.net { type master; notify no; file
"/etc/bind/null.zone.file"; };
with /etc/bind/null.zone.file containing:
; BIND db file for ad servers - point all addresses to localhost
;
; This file comes from:
;
; https://pgl.yoyo.org/adservers/
;
; A site with a list of ad servers and details on how to use it to
; block ads on the Internet. Plus some BIND stuff and other bits.
;
; - p...@yoyo.org
;
$TTL 86400 ; one day
@ IN SOA ns0.example.net. hostmaster.example.net. (
2002061000 ; serial number YYMMDDNN
28800 ; refresh 8 hours
7200 ; retry 2 hours
864000 ; expire 10 days
86400 ) ; min ttl 1 day
NS ns0.example.net.
NS ns1.example.net.
A 127.0.0.1
AAAA ::1
* IN A 127.0.0.1
* IN AAAA ::1
Bind 1:9.20.10-1+ubuntu20.04.1+deb.sury.org+1 amd64 runs out of memory and
crashes on a 4GB virtual machine with 1 vCPU.
I downgraded to 9.18 (and am using the same bind configs as before) and
that "fixed" the issue:
apt-get install bind9=1:9.18.30-0ubuntu0.20.04.2
bind9-utils=1:9.18.30-0ubuntu0.20.04.2 bind9-libs=1:9.18.30-0ubuntu0.20.04.2
So, rather than pretending that the new version of bind is better, maybe
the developers of bind should figure out how to make the newer versions of
bind more memory efficient than the older versions as opposed to
making them significantly worse in regards to memory usage.
There have been countless threads in bind-users complaining about memory
usage in the newest versions. It's time that these reports were taken
seriously. They're legit. Newer versions of bind use more memory. Why?
I don't know... I'm not a bind developer.
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