[Pdns-users] [Error] No delegation for zone 'subdomain.domain.tld' in parent 'domain.tld'

Peter van Dijk peter.van.dijk at powerdns.com
Fri Apr 24 12:44:59 UTC 2020

Hello George,

> On 16/04/2020 14:52 George Asenov via Pdns-users <pdns-users at mailman.powerdns.com> wrote:
> For those domains
> pdnsutil check-all-zones give the follwing error:
> [Error] No delegation for zone 'subdomain.userdomain.tld'  in parent 
> 'userdomain.tld'

Please do not edit program or log output, it makes it impossible to help you. Please see https://blog.powerdns.com/2016/01/18/open-source-support-out-in-the-open/ for an explanation.

That said, pdnsutil reports it as an Error because it is a misconfiguration that you need to fix.

> I think this is not an issue - the domains are working fine and resolving.
> But can this cause the following errors that we have in all edge slaves:
> ==========================================
> pdns_server: Backend error (retry once): GSQLBackend lookup query:Could 
> not execute mysql statement: SELECT 
> content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE 
> disabled=0 and type=? and name=
> ?: Lost connection to MySQL server during query
> ===========================================

The pdnsutil error about 'No delegation for zone' is not the cause of this MySQL error. Your MySQL server disconnecting your pdns_server is the cause of this error. If your machines do not get a lot of queries, MySQL may decide to time out those connections. If that is the case, you should increase wait_timeout in your MySQL configuration to hours or perhaps even days.

Kind regards,
Peter van Dijk
PowerDNS.COM BV - https://www.powerdns.com/

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