Hi Remi,
Clearly unexpected. You might be able to get more information about what is going by setting setVerboseHealthChecks [1] in dnsdist.
very good point, thank you I'll enable it!
One unrelated thing I noticed in your configuration is that you are setting maxInFlight to 1000 on newServer, telling dnsdist to send up to 1000 concurrent queries on an outgoing TCP connection to the backend, but on the recursor's side it looks like max-concurrent-requests-per-tcp-connection [2] is set to the default of 10. This might lead to terrible latency numbers over TCP, so I would suggest increasing that setting, or decreasing the maxInFlight value in the dnsdist configuration.
I'll enable max-concurrent-requests-per-tcp-connection to 1000 on recursor's side.
thanks for taking a look the config files and your valuable input! Christoph _______________________________________________ Pdns-users mailing list Pdns-users@mailman.powerdns.com https://mailman.powerdns.com/mailman/listinfo/pdns-users
