[dnsdist] Fwd: dnsdist drop query (with TTL of zero?)

[Vu Le]

Hi Bert,

grepq("2000ms") provide empty result - but I tried install
the 0.0.873gf119f13 instead of alpha2. Then I can query that same domain.

Best Regards,
Vu Le.

On Thu, Apr 7, 2016 at 12:32 PM, bert hubert <bert.hubert at powerdns.com>
wrote:

> Hi Vu Le,
>
> Try 'grepq("2000ms")' on the console. This will give you all queries that
> dnsdist thinks timed out.
>
> Secondly, we can study your case better if you feed statistics to metronome
> with carbonServer("37.252.122.50"). This will generate a lot of graphs on
> our public Metronome instance as described on
> http://blog.powerdns.com/2014/12/11/powerdns-graphing-as-a-service/
>
> Please let us know if you put your graphs on there, it would be very
> helpful.
>
>         Bert
>
> On Thu, Apr 07, 2016 at 11:47:19AM +0700, Vu Le wrote:
> > Hi everyone,
> >
> > Could anyone show me how to debug a case that pdn-recurosr backend
> return a
> > answer but dnsdist seem to drop it. The domain has TTL of zero - I am not
> > sure if this is the reason.
> >
> > I run 4 instance of pdns-recusor on localhost and dnsdist load balance
> the
> > query to them.
> >
> > Best Regards,
> > Vu Le
> > --
> >
> >
> >
> > # dnsdist --version
> > dnsdist 1.0.0-alpha2
> >
> >
> >
> > # cat /etc/dnsdist/dnsdist.conf
> > setLocal("0.0.0.0:53", true)
> >
> > controlSocket("127.0.0.1")
> >
> > addACL("0.0.0.0/0")
> >
> > newServer("127.0.0.1:5301")
> > newServer("127.0.0.1:5302")
> > newServer("127.0.0.1:5303")
> > newServer("127.0.0.1:5304")
> >
> >
> >
> > # dig chipchipdongngac.myq-see.com @localhost -p5301
> >
> > ; <<>> DiG 9.9.4-RedHat-9.9.4-29.el7_2.1 <<>>
> chipchipdongngac.myq-see.com
> > @localhost -p5301
> > ;; global options: +cmd
> > ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58762
> > ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
> >
> > ;; QUESTION SECTION:
> > ;chipchipdongngac.myq-see.com. IN A
> >
> > ;; ANSWER SECTION:
> > chipchipdongngac.myq-see.com. 0 IN A 58.187.99.102
> >
> > ;; Query time: 268 msec
> > ;; SERVER: 127.0.0.1#5301(127.0.0.1)
> > ;; WHEN: Thu Apr 07 11:30:05 ICT 2016
> > ;; MSG SIZE  rcvd: 62
> >
> >
> >
> > # dig chipchipdongngac.myq-see.com @localhost -p53
> >
> > ; <<>> DiG 9.9.4-RedHat-9.9.4-29.el7_2.1 <<>>
> chipchipdongngac.myq-see.com
> > @localhost -p53
> > ;; global options: +cmd
> > ;; connection timed out; no servers could be reached
>
> > _______________________________________________
> > dnsdist mailing list
> > dnsdist at mailman.powerdns.com
> > https://mailman.powerdns.com/mailman/listinfo/dnsdist
>
>
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