On Thu, Jul 16, 2009 at 2:13 PM, Tom Mueller<[email protected]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi, > > sometimes the pdns_recursor doesn't send all A or AAAA records where > the requested CNAME points to.
Tom, Do you run with an IPv6 local query address enabled? Can you, privately, send me the full host names involved? And a copy of your configuration file too? Do you see this problem only on rz-ip.net? Thanks. > There are no cascading CNAMES, the CNAME points to an A record. > In the first query the A records are missing, some seconds (and > several more requests) later the A records were sent, too > The TTL shows that the records are fetched by pdns_recursor in the > same second. > Hint: the 'X' in hostnames and IP addresses is a replacement of other > chars and digits. > > Additional informations: > We are running 2 instances of pdns_recursor listening at different > ports on this IP to scale the amount of queries. > The concerning instance has a load average of round about 1500 qps. > > > There are no error messages in the log - so I wonder what's happened? > There is another issue that sometimes existing AAAA records of another > host not sent but only the A records. > > I think, when there was an error condition during recursion the > pdns_recursor has to sent a SERVFAIL, but it didn't. > So it may be possible that there is an issue in the cache management > when a refresh is needed it is not performed immediately? > Any idea? _______________________________________________ Pdns-users mailing list [email protected] http://mailman.powerdns.com/mailman/listinfo/pdns-users
