odd increase in SERVFAIL with "misc failure" reason

[Olivier Benghozi]

... we've downgraded everything to 1.21.1, CPU and UDP Out Queries are back
to normal.
Definitely 1.22.0 has a problem.

Le mer. 6 nov. 2024 à 19:42, Olivier Benghozi <olivier.benghozi at wifirst.fr>
a écrit :

> Hi Yorgos,
>
> yes, about serve-expired we have:
>
> serve-expired: yes
>
> serve-expired-ttl: 172800
>
> serve-expired-reply-ttl: 300
>
> serve-expired-client-timeout: 1600
>
>
> ede-serve-expired: yes
>
>
> I've just downgraded one server in our DNS farm from 1.22.0 to 1.21.1 ;
> UDP Out queries value was immediately divided by 2.
>
> Le mer. 6 nov. 2024 à 19:12, Yorgos Thessalonikefs via Unbound-users <
> unbound-users at lists.nlnetlabs.nl> a écrit :
>
>> Hi Olivier,
>>
>> This (more upstream queries) may be related to another issue that we are
>> investigating.
>> Do you happen to have serve-expired enabled in Unbound?
>>
>>
>> On 06/11/2024 18:56, Olivier Benghozi via Unbound-users wrote:
>> > ... and CPU usage is x1.5.
>> > Something seems wrong.
>> >
>> > Le mer. 6 nov. 2024 à 18:11, Olivier Benghozi
>> > <olivier.benghozi at wifirst.fr <mailto:olivier.benghozi at wifirst.fr>> a
>> écrit :
>> >
>> >     Here we observe a big increase of UDP Out queries when updating from
>> >     1.21.0 to 1.22.0 (factor x4).
>> >     Doesn't seem to be linked to max-global-quota
>>
>

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