[Unbound-users] Strange SERVFAIL from unbound

W.C.A. Wijngaards wouter at NLnetLabs.nl
Fri Nov 14 20:27:21 UTC 2008


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Jaco Engelbrecht wrote:
> We've been running into the same problem - running Version 1.0.2 with
> libevent 1.4.8-stable, libldns 1.3.0.

I have heard very good reports of unbound with libevent 1.4.8-stable.

> I run unbound with 4 theads, and I've noticed that only 1 thread seems
> to be returning the SERVFAIL.

Do you have 4 cores? Otherwise you OS may schedule to one core mostly.

> Do you maintain an infrastructure cache per thread?

No, one cache per process.

> What level of verbosity should I set to provide meaningful information
> that you can use to debug the issue?

Emailed offlist.

> I'll do this for our record as well, and mail you with my findings.

Thanks!

Best regards,
   Wouter
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