Jan, Best of luck with your optimisations. If the network-slow are very slow, then this could explain the issue you see.
Frank > On 7 Jun 2022, at 15:34, Jan Huijsmans via Pdns-users > <pdns-users@mailman.powerdns.com> wrote: > > Hi Frank, > > On Wed, 1 Jun 2022 12:48:01 +0200 > "frank+p...@tembo.be" <frank+p...@tembo.be> wrote: > >> Hi Jan, >> >> I completely understand NDAs and myself (and numerous other PowerDNS >> Certified Consultants on this list) are happy to sign them, as part >> of a professional engagement. Please reach out to me off-list to >> discuss your options. >> >> However, this also means that on this list, we can't help you much... >> >> As per your questions: first we need to know what happens. The trace >> should tell us. Options to look at: (yes this list is long and some >> won't apply, but please reread the first sentence of this mail) >> >> * https://doc.powerdns.com/recursor/settings.html#network-timeout > > I'm getting the feeling this is the culprit. We looked at the nsspeeds > the recursor reported and saw times between 0.6 and 1.2s for the > root servers just after a restart of de recursor. > > I now get reports that the admins see 2s responce times in their > environment, making the default of 1.5s timeout a tad close to the > times observed in a clean environment and to low for reported times. > We instructed to set the network-timeout to 3000 or even 5000. > >> * >> https://doc.powerdns.com/recursor/settings.html#dont-throttle-netmasks > > We already set this to 0.0.0.0/0,::/0 and kept seeing the issues. > > The local admins are keeping an eye on the environment with the new > settings and will report back. > > -- > > Jan Huijsmans b...@koffie.nu > > ... cannot activate /dev/brain, no response from main coffee server > > > _______________________________________________ > Pdns-users mailing list > Pdns-users@mailman.powerdns.com > https://mailman.powerdns.com/mailman/listinfo/pdns-users _______________________________________________ Pdns-users mailing list Pdns-users@mailman.powerdns.com https://mailman.powerdns.com/mailman/listinfo/pdns-users
