[TS-2358] DNS does not fail-over promptly for DNS server returning SERVFAIL

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.2.5
• Fix Version/s: sometime
• Component/s: DNS
• Assignee: Thomas Jackson
• Reporter: William Bardwell
• Created: 16/Nov/13 05:11
• Updated: 16/Aug/16 15:56

Description

If I have 2 dns servers listed in my resolv.conf and the first one is returning SERVFAIL for something that I try to lookup, ATS takes a long time to fail over, and won't do it for the first request to look something up. Using normal system commands (host, ping etc.) with the same resolv.conf work fine.

I tried various config values with out much improvement. I could make it fail in 40sec instead of 60sec for the initial failure...

debug logs will be attached, doing one DNS and then waiting a while and doing another. (Doing more before enough time has passed don't seem to help much.)