Patching bind for additional stats - any tips?

Michael Graff mgraff at
Tue Jul 19 08:14:09 UTC 2011

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I am very interested in hearing what you are looking for.  I have some
thoughts about "performance" measurements, mostly to answer the age-old
question, "Are my servers working well?"

Would you release the patches, and if so, would you be willing to work
with the ISC BIND 9 team to see if we can find common ground and perhaps
get your patches into BIND 9 releases quickly?

- --Michael

On 7/18/11 8:13 PM, Alex Kolchinski wrote:
> Hi everyone - I'm at Google and currently starting on a mini-project to
> get some more insight into how our BIND servers are performing. Our
> first thoughts on how to add logging on metrics we're interested in are
> currently to patch BIND to spit out the wanted stats directly from BIND
> (data on each query, perhaps aggregated). An alternative to this would
> be to try to match the incoming and outgoing request and response
> packets and amass the data from that, but our attempts at data gathering
> through sniffing have given unreliable results. (One alternative I've
> stumbled upon is DSC - -
> but I'm not sure yet how appropriate or effective it would be for our
> needs, so if anyone has any thoughts, that would be much appreciated.)
> I've never worked with BIND before, so I'm looking over the code right
> now figuring out which approach is going to be the most effective and
> straightforward. Does anyone have any experience with something similar
> and/or suggestions on approaches or considerations to think about? It's
> looking like if the patch is going to be the way to go, simply modifying
> BIND's stats-outputting functionality should be a good way to extend
> what statistics we're getting, although I'm not sure on that count
> either. Any thoughts?
> Thanks, everyone
> -Alex
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