[Pdns-users] PDNS 3.x with PDNS 2.9.x Database Schema

[Mark Moseley]

>
> On 2015/07/22 06:48 PM, Mark Moseley wrote:
>
>> On Tue, Jul 21, 2015 at 5:00 PM, Gabriel Marais
>> <gabriel.j.marais at gmail.com <mailto:gabriel.j.marais at gmail.com>> wrote:
>>
>>     Hi Guys
>>
>>     Seems like I have hit a brick wall. I have PowerDNS 2.9.x running as
>>     master and 2 slaves. I am busy moving over to Ubuntu 14.x on newly
>>     installed servers and as such I ended up with PowerDNS 3.x which is
>>     not compatible with the older 2.9 schema on MySQL.
>>
>>     I have read in a thread that one could use custom queries to
>>     overcome the immediate issue of moving a complete DNS implementation
>>     over to the version 3.x schema but I cannot seem to find the custom
>>     queries to overcome the issue from my log :-
>>
>>     Jul 22 01:17:46 hubble pdns[2006]: Backend error: Failed to execute
>>     mysql_query, perhaps connection died? Err=1: Unknown column 'auth'
>>     in 'field list'
>>
>>     Ultimately, I would like to move over to PowerDNS 3.x but right now
>>     I need to get another 'slave' working which is sitting on PowerDNS
>>     3.x to work with my 2.9 master and database schema.
>>
>>     Can anyone perhaps point me in the right direction with the custom
>>     queries to accommodate the missing "auth" column in the new DB schema?
>>
>>
>>
>>  Hi Mark
>
> Thanks for the reply. This is what I was looking for..
>
>> I limped by for a little while with these queries, in the middle of a
>> 2.9.x->3.x upgrade. It's been long enough now that I couldn't tell you
>> what negative side effects it had, but I do remember that AXFR's did
>> *NOT* work with the below queries. IIRC with this setup, AXFRs will
>> actually cause a restart of pdns, so you'd want to get off of it pretty
>> quick.
>>
>>  I added the queries to my config file, pdns.local.gmysql.conf
> But I'm still getting the error on the "auth" field :-
> Backend error: Failed to execute mysql_query, perhaps connection died?
> Err=1: Unknown column 'auth' in 'field list'
>
>  # Use old queries till we get schema updated
>> gmysql-basic-query=SELECT content,ttl,prio,type,domain_id,name FROM
>> records WHERE type='%s' and name='%s'
>> gmysql-any-id-query=SELECT content,ttl,prio,type,domain_id,name FROM
>> records WHERE name='%s' and domain_id=%d
>> gmysql-list-query=SELECT content,ttl,prio,type,domain_id,name FROM
>> records WHERE 0=%d and domain_id='%d' order by name, type
>>
>>
>> At the same time, the 2.9.x boxes might work just fine (but you'd
>> obviously want to test first) with the 3.x schema, though I'm assuming
>> you're doing mysql replication.
>>
>


Must be a different query. You could tcpdump the query and match it up to
the list of queries in the pdns docs and adapt it accordingly perhaps.
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