[Dnsmasq-discuss] dnsmasq does not seem to randomize resolvers

[Sjors Gielen]

Op 06-03-13 19:02, Simon Kelley schreef:
>> Thanks for your response. In my tests the two main resolvers were
>> both equally fast (≈ 1 ms as they had the results cached), so even
>> though one may be a tiny bit quicker than the other, I doubt it would
>> be an explanation for it choosing a specific server 19 out of 20
>> times. Though it would be interesting to verify this; is there some
>> debug option that shows dnsmasq's train of thought?
> 
> The decision is made by which resolver's packet arrives first, so microseconds count: I guess the ultimate arbiter is the first common switch in the path from the resolvers to the host running dnsmasq.
> 
> Of course, one resolver will have an advantage because it gets the query sent to it first. The order that the query is sent to the resolvers isn't defined, but it's probably a consistent function of their order in the configuration file.

Ah, if you say it like that -- it makes sense that the same one would be chosen most of the time if they are this close. Thanks!

Sjors

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