On Wed, 2010-03-31 at 00:09 -0400, keccles wrote: > In the load tests, we see scads of DNS lookup warning messages that > don't seem to be causing any problems. > > These DNS messages are a side effect of having split the lookup into multiple > threads. > Look ups of _sip._tcp.rr.xxx and _sip._udp.rr.xxx (SRV and then A) records > are successful. > Look ups of rr.xxx (A) and _sip._tls.rr.xxx (SRV) records are unsuccessful. > > Questions: > - Should the load test be configured with A records for rr.xxx names?
No. The rr should only be an SRV name. If anything, the logic of the DNS lookups should be modified so that if an SRV record is found for some name, then no A query should be made for that name. Since most DNS lookups are presumably successful in the real world, it seems to me that there is little or no advantage to doing the A record lookup in parallel - wait until the SRV lookup result is known (and ideally, use the A record results that are nearly always returned with the SRV record for the target host). _______________________________________________ sipx-dev mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-dev Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-dev sipXecs IP PBX -- http://www.sipfoundry.org/
