[Pdns-users] Pdns-users Digest, Vol 194, Issue 13

Tue Mar 12 12:18:10 UTC 2019

# dig AXFR test.org @10.3.2.15

; <<>> DiG 9.9.4-RedHat-9.9.4-50.el7 <<>> AXFR test.org @10.3.2.15
;; global options: +cmd
; Transfer failed.

I don't know if I am executing the order like this.
My backend is mysql
And my master has used the 5300 port to provide services.

At 2019-03-12 20:00:01, pdns-users-request at mailman.powerdns.com wrote:
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>Today's Topics:
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>   1. Synchronization problem from node (姜伯洋)
>   2. Re: Synchronization problem from node (frank+pdns at tembo.be)
>   3. Debugging SERVFAIL (Martin Kellermann)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Tue, 12 Mar 2019 18:35:00 +0800 (CST)
>From: 姜伯洋 <15555513217 at 163.com>
>To: pdns-users at mailman.powerdns.com
>Subject: [Pdns-users] Synchronization problem from node
>Message-ID: <504cf46a.cef6.169717842de.Coremail.15555513217 at 163.com>
>Content-Type: text/plain; charset="gbk"
>
>Mar 12 18:29:58 test-ops-dns-1 pdns_server: Received NOTIFY for test.org from 10.3.2.15
>Mar 12 18:29:58 test-ops-dns-1 pdns_server: Queueing slave check for test.org
>Mar 12 18:29:59 test-ops-dns-1 pdns_server: Got NOTIFY for test.org, going to check SOA serial, our serial is 2019031205
>Mar 12 18:29:59 test-ops-dns-1 pdns_server: Got NOTIFY for test.org, going to check SOA serial
>Mar 12 18:29:59 test-ops-dns-1 pdns_server: 1 slave domain needs checking, 0 queued for AXFR
>Mar 12 18:29:59 test-ops-dns-1 pdns_server: Received serial number updates for 1 zone, had 0 timeouts
>Mar 12 18:29:59 test-ops-dns-1 pdns_server: Domain 'test.org' is stale, master serial 2019031209, our serial 2019031205
>Mar 12 18:29:59 test-ops-dns-1 pdns_server: Initiating transfer of 'test.org' from remote '10.3.2.15'
>Mar 12 18:29:59 test-ops-dns-1 pdns_server: gmysql Connection successful. Connected to database 'powerdns' on '10.3.0.12'.
>Mar 12 18:29:59 test-ops-dns-1 pdns_server: Starting AXFR of 'test.org' from remote 10.3.2.15:53
>Mar 12 18:29:59 test-ops-dns-1 pdns_server: Unable to AXFR zone 'test.org' from remote '10.3.2.15' (resolver): AXFR chunk error: Server Failure
>Slave node error during synchronization
>Where is this problem?
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>Message: 2
>Date: Tue, 12 Mar 2019 11:39:10 +0100
>From: frank+pdns at tembo.be
>To: pdns-users-ml <pdns-users at mailman.powerdns.com>
>Subject: Re: [Pdns-users] Synchronization problem from node
>Message-ID: <7F35BB06-E68E-4A54-BE82-3838B5004A2C at louwers.be>
>Content-Type: text/plain; charset="utf-8"
>
>Hi 姜伯洋,
>
>> Mar 12 18:29:59 test-ops-dns-1 pdns_server: Unable to AXFR zone 'test.org <http://test.org/>' from remote '10.3.2.15' (resolver): AXFR chunk error: Server Failure
>> Slave node error during synchronization
>
>It seems the AXFR zonetransfer failed.
>
>Could you do a “dig AXFR test.org <http://test.org/> @10.3.2.15” from the slave and paste the output here?
>
>Kind Regards,
>
>Frank Louwers
>PowerDNS Consultant
>
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>Message: 3
>Date: Tue, 12 Mar 2019 12:27:11 +0100
>From: Martin Kellermann <kellermann at sk-datentechnik.com>
>To: "pdns-users at mailman.powerdns.com"
>	<pdns-users at mailman.powerdns.com>
>Subject: [Pdns-users] Debugging SERVFAIL
>Message-ID:
>	<30AE9853470C2147891CED063F5EFC56018E00D29903 at SKSERVER21.sk.local>
>Content-Type: text/plain; charset="utf-8"
>
>hi,
>
>pdns auth server 4.1.6 with postgresql backend
>
>i'm facing the fact, that from time to time the servfail-packets counter increases, and i don't know, why.
>https://doc.powerdns.com/authoritative/performance.html#servfail-packets tells me, that this is due to a database problem.
>https://doc.powerdns.com/authoritative/performance.html#ring-buffers tells me that the servfail-queries ring-buffer shows which queries have been causing servfails.
>but when i look at this ring-buffer (server:8081/?ring=servfail-queries) there are no entries - it's empty.
>
>can someone please explain, what am i missing or not understanding correctly?
>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...
>how can i debug, what query causes a servfail?
>
>
>Thanks in advance.
>
>regards
>
>MK
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