[Pdns-users] Unterstanding slave logs

[Aki Tuomi]

On Sat, Apr 11, 2015 at 05:30:10PM -0400, Peter Thomassen wrote:
> Hi,
> 
> My PowerDNS slave log file often shows lines like the following:
> 
> 17 slave domains need checking, 0 queued for AXFR
> Received serial number updates for 16 zones, had 1 timeouts
> Domain 'example.com' is fresh (not presigned, no RRSIG check)
> [there are 16 lines like the last one]
> 
> I am not sure if I understand exactly what these lines mean. Here's what
> I think they mean:
> 
> - 17 slave domains need to be refreshed, based on SOA refresh setting
> - For 16, an SOA record with serial was retrieved from the master
> - It happens to be the case that none of the serials changed
> - There was a problem with the 17th slave domain (timeout)
> - The 17th domain will be retried according to the SOA retry setting
> 
> Is my understanding accurate?
> 
> I wonder where that timeout comes from. The master is also a PowerDNS
> server.
> 
> Thank you,
> Peter
> -- 
> OpenPGP Key: 0x3EF22D2F
> 

You understanding is accurate. You can try AXFR manually, 

dig axfr zone.name @master

to see if the timeout occurs again. If it does, I recommend looking at the
master's logs. 

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