odd increase in SERVFAIL with "misc failure" reason

[Wolfgang Breyha]

On 06/11/2024 16:32, Yorgos Thessalonikefs via Unbound-users wrote:
> Thanks for bringing this up!
> We also had other operational feedback about the value and we decided to
> bump it up to 200 from the initial 128.
> Still keeping the possible amplification factor for CAMP-style issues in
> the hundreds.
> 
> https://github.com/NLnetLabs/unbound/commit/
> fd1a1d5fa0f012e8eeaa0ecc89da52d9ca25c216

Ok, tried that as well. Changed config only by adding
max-global-quota: 200

The empty cache produced for
at.mirrors.cicku.me. AAAA

debug: request at.mirrors.cicku.me. has exceeded the maximum global quota
on number of upstream queries 201

with a final top of 222 :( I think even 200 is too low especially with near
empty cache or there is something else involved as well.

I'm tempted to raise the bar to full 8 bits;-)

Greetings, Wolfgang
-- 
Wolfgang Breyha <wbreyha at gmx.net> | https://www.blafasel.at/
Vienna University Computer Center | Austria