[Pdns-users] Recursion issue--SERVFAIL then NOERROR totally at random

[bert hubert]

On Tue, Sep 09, 2014 at 08:20:48PM +0200, bert hubert wrote:
> On Tue, Sep 09, 2014 at 05:57:08PM +0000, Todd Smith wrote:
> 
> > Actually that begs one more question--as of right now I actually have
> > network-timeout set to 5000 in recursor.conf, yet obviously it's still
> > timing out considerably sooner than that; is there, say, some other
> > setting (that is, of course, within PowerDNS) that might be conflicting
> > with this causing it time out sooner?
> 
> Just just checked, 3.6.0 honors network-timeout correctly under normal
> conditions, seeing if there are possibilities when we might be short
> circuiting it.

Ok, this has to do with the nature of trace-regex, which outputs the whole
thing at the end of the resolve process, with only one timestamp.

Clarified the output a bit to:

Sep 09 20:28:50 [13281] toyotasupplier.com.: Resolved 'toyotasupplier.com.' NS gslb-ns1.toyota-na.com. to: 63.238.139.235
Sep 09 20:28:50 [13281] toyotasupplier.com.: Trying IP 63.238.139.235:53, asking 'toyotasupplier.com.|MX'
Sep 09 20:28:50 [13281] toyotasupplier.com.: timeout resolving after 5000.47msec 
Sep 09 20:28:50 [13281] toyotasupplier.com.: Trying to resolve NS 'gslb-ns2.toyota-na.com.' (2/2)

https://github.com/PowerDNS/pdns/commit/863ca18dd298ad0f2ee377aaf539450bc81e0b0a

I also get intermittent failures of toyotasupplier.com here by the way, so
it isn't just you!

	Bert