odd increase in SERVFAIL with "misc failure" reason

[Olivier Benghozi]

Hi Yorgos,

sure, we could try on one low load server here.

Le ven. 8 nov. 2024 à 09:53, Yorgos Thessalonikefs <yorgos at nlnetlabs.nl> a
écrit :

> Hi Olivier,
>
> We are already working on it and we believe we have a solution.
> Would you like to be involved with preliminary testing?
>
> Best regards,
> -- Yorgos
>
> On 07/11/2024 15:56, Olivier Benghozi wrote:
> > ... 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 <mailto: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 <mailto: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>
> >         <mailto: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
>

-- 
*Ce message et toutes les pièces jointes (ci-après le "message") sont 
établis à l’intention exclusive des destinataires désignés. Il contient des 
informations confidentielles et pouvant être protégé par le secret 
professionnel. Si vous recevez ce message par erreur, merci d'en avertir 
immédiatement l'expéditeur et de détruire le message. Toute utilisation de 
ce message non conforme à sa destination, toute diffusion ou toute 
publication, totale ou partielle, est interdite, sauf autorisation expresse 
de l'émetteur*
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.nlnetlabs.nl/pipermail/unbound-users/attachments/20241108/ff2bc56c/attachment.htm>