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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>pdns auth server 4.1.6 with postgresql backend<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>i'm facing the fact, that from time to time the servfail-packets counter increases, and i don’t know, why.<o:p></o:p></p><p class=MsoNormal><a href="https://doc.powerdns.com/authoritative/performance.html#servfail-packets"><span style='color:windowtext;text-decoration:none'>https://doc.powerdns.com/authoritative/performance.html#servfail-packets</span></a> tells me, that this is due to a database problem.<o:p></o:p></p><p class=MsoNormal><a href="https://doc.powerdns.com/authoritative/performance.html#ring-buffers"><span style='color:windowtext;text-decoration:none'>https://doc.powerdns.com/authoritative/performance.html#ring-buffers</span></a> tells me that the servfail-queries ring-buffer shows which queries have been causing servfails.<o:p></o:p></p><p class=MsoNormal>but when i look at this ring-buffer (server:8081/?ring=servfail-queries) there are no entries - it's empty.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>can someone please explain, what am i missing or not understanding correctly?<o:p></o:p></p><p class=MsoNormal>the amount of servfail packets is really low – 14 servfail on 2 mio queries, but it is really annoing, since i don’t know, what’s going on…<o:p></o:p></p><p class=MsoNormal>how can i debug, what query causes a servfail?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks in advance.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>regards<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>MK<o:p></o:p></p></div></body></html>