[Pdns-users] PowerDNS tcp query rate

[Riccardo Brunetti]

Hello Alan.

Thanks for your answer.

In attachment the pdns.conf and the file with the random input domains.

Thanks for your help.

Riccardo





30/03/2023, 10:54 Alan Holmes ha scritto:

> Hello,
> 
> Very interesting issue indeed. I came across a similar problem in the past.
> 
> In order for me to understand what you are missing, can you share the configuration you have used and the target IP.
> 
> If you will also share some of the random third level domains,
> 
> I will also verify your pdns configuration directly.
> 
> 
> 
> Best,
> 
> Alan
> 
> 
> 
> 
> 
> 
> 
> ------ Messaggio originale ------
> 
> Da "Riccardo Brunetti via Pdns-users" <pdns-users at mailman.powerdns.com>
> 
> A "pdns-users" <pdns-users at mailman.powerdns.com>
> 
> Data 29/03/2023 18:03:45
> 
> Oggetto [Pdns-users] PowerDNS tcp query rate
> 
> 
> 
> >Hello.
> 
> >We are testing a powerdns authoritative server installation and we are >trying to figure out the maximum query rate in TCP mode.
> 
> >
> 
> >We use the "dnsperf" tool with the following syntax:
> 
> >
> 
> >>dnsperf -m tcp -s xxx.xxx.xxx.xxx -d barbeuk.elenco -c 10 -T 200 -l >>180 -Q 200000 -S 1
> 
> >where:
> 
> >xxx.xxx.xxx.xxx is the IP address of the powerdns server
> 
> >barbeuk.elenco is a file containing a list random third level domains.
> 
> >
> 
> >What we are finding is that we can't go above 1000 queries per second >and we can't understand why since using UDP we can handle more than >30000 queries per second.
> 
> >
> 
> >We are probably missing something relevant in the configuration, but we >can't understand what.
> 
> >Which are the most important configurations to be considered concerning >the performances in TCP?
> 
> >
> 
> >We are using powerdns version 4.7.3.
> 
> >Thanks.
> 
> >Riccardo
> 
> >


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