Uploaded image for project: 'Traffic Server'
  1. Traffic Server
  2. TS-2358

DNS does not fail-over promptly for DNS server returning SERVFAIL

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 3.2.5
    • sometime
    • DNS
    • None

    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.)

      Attachments

        1. ats.dns.txt
          22 kB
          William Bardwell

        Activity

          People

            jacksontj Thomas Jackson
            wbardwel William Bardwell
            Votes:
            0 Vote for this issue
            Watchers:
            6 Start watching this issue

            Dates

              Created:
              Updated: