[atlas] Making a bunch of tests/measurements to a single destination is 'tedious'

Chris,

On 24/01/2019 06.39, Christopher Morrow wrote:
> howdy!
> So, if I have a dns server somewhere and I want to make a bunch of 
> measurements:
>    "how does NYC see my dns?" (pick N probes near NYC)
>    "How does DEN see my dns?" (pick N probes near DEN)
>    "How does LHR see my dns?" (pick N probes near LHR)
>    "how does ...."
> 
> ...you get the idea... I'm trying to characterize my service from a 
> 'user' perspective by large Metropolis, well within N km of that 
> metropolis anyway :) but across ~70 or so metros, in v4 and v6 and with 
> authoritative and non-authoritative queries with each test running for 4 
> days so i can see some daily cycles in traffic patterns/etc. The number 
> of measurements is large in total, breaking up by 3-4 metropolis chunks 
> is super tedious :(
> 
> Can I request an API key (or some other thing) which can make that sort 
> of request happen for all my measurements in one go? The thing I'm 
> probing is very able to handle a few extra thousand queries per second.. 
> and I'd only be hurting myself i get my estimate wrong :)

I was part of a team on a hackathon a while back which needed to compute 
distances between points on the globe, including Atlas probes:

https://github.com/shane-kerr/ripe-atlas-anycast-work

I see that the openflights project has since moved to GitHub, and so you 
can get the IATA airport data here:

https://github.com/jpatokal/openflights/blob/master/data/airports.dat

I guess I should update the README.md...

The repository is basically a last-point-in-time snapshot of the 
hackathon work, so it a bit rough. 😬 Anyway, this code is probably the 
closest to what you want:

https://github.com/shane-kerr/ripe-atlas-anycast-work/blob/master/add-dist.py

Turning the great_circle_dist() function into a filter across the set of 
all probes (meta-probes.json, which you can download in advance) should 
get you something like what you want.

Note that this was all done 4 years ago according to GitHub, so maybe 
Atlas provides better tools for this nowadays. 😊

Cheers,

--
Shane