Hi Wouter, I've followed your tips, now I'm controlling the timeout from libev using file descriptor returned by ub_fd().
Thank you ! Regards, Vitalie Cherpec On Tue, Nov 30, 2010 at 5:30 PM, W.C.A. Wijngaards <[email protected]>wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi Vitalie, > > The timeouts depend on the exact roundtrip times as observed, and the > nameservers for the domain. If you want to have a timeout in your > software in case the resolution takes a long time, perhaps you want to > use alarm(2) or another timeout mechanism (e.g. from libevent). > > Such as, use select(2) on the ub_fd() with the timeout of your choice. > You can use ub_cancel() to tell libunbound that the result of this query > is no longer needed. > > Best regards, > Wouter > > On 11/26/2010 03:48 PM, Vitalie Cherpec wrote: > > Example output: > > > > [vita...@silver ~]$ time unbound-host -4 www.example.com > > <http://www.example.com> > > Host www.example.com <http://www.example.com> not found: 2(SERVFAIL). > > Host www.example.com <http://www.example.com> not found: 2(SERVFAIL). > > Host www.example.com <http://www.example.com> not found: 2(SERVFAIL). > > > > real 19m17.427s > > user 0m0.011s > > sys 0m0.011s > > > > > > On Fri, Nov 26, 2010 at 4:21 PM, Vitalie Cherpec <[email protected] > > <mailto:[email protected]>> wrote: > > > > Hi, > > > > I'm trying to use asynchronous interface from unbound > > (ub_resolve_async) and I do have a problem. > > When running DNS queries which receive no response from the > > nameservers (lame delegation), > > it locks the program and keeps trying forever (iterator module). > > Same thing happens running query > > with unbound-host command. > > > > I've studied the documentation, but I didn't find any information on > > how should I > > configure the timeouts. Do you have any clues ? > > > > > > Regards, > > Vitalie Cherpec > > > > > > > > > > > > _______________________________________________ > > Unbound-users mailing list > > [email protected] > > http://unbound.nlnetlabs.nl/mailman/listinfo/unbound-users > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.11 (GNU/Linux) > Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ > > iEUEARECAAYFAkz1GK0ACgkQkDLqNwOhpPhsmACXadp0UsO078iAWuKikv8S9Kqr > zACfTKmoV25tCuMJtElHWUJkzcTaN7E= > =KlZc > -----END PGP SIGNATURE----- > _______________________________________________ > Unbound-users mailing list > [email protected] > http://unbound.nlnetlabs.nl/mailman/listinfo/unbound-users > -- DNS Validation <http://www.dnsvalidation.com> - Free DNS Tests
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