[SSSD-users] Kerberos DNS SRV records preference

Hello, Can somebody confirm me the behaviour of SSSD (we're currently on version 1.8.6, but will migrate to whatever comes in Ubuntu 14.04) with regards to Kerberos DNS records? I mean, sssd series 1.8 did not have any special handling for AD, so LDAP queries went to provided ldap_uri and Kerberos queries thanks to the dns_discover_domains are handled by the DNS SRV records for _kerberos._udp.example.com. Correct me if I'm wrong. The DNS SRV records have a preference, or a priority option. Is this taken into account, so that lower priority server is never accessed if the higher one answers? I am asking because or AD team implemented some "Disaster Recovery" domain controller which they only turn on for 2 hours a week, after work of course and I believe the logon time is much longer now. I don't have exact details for it, though. They claim that they cannot remove the SRV record for the "special" server as it will not replicate the AD structure to the server in such a case, so they offered to lower the priority, but I'm not sure if that's going to help. I was also informed that the client should be actually using SRV records for the particular site, which don't contain the "special" server. Does the 1.9+ series AD backend solve this particular issue? Best regards, Bolesław Tokarski