[atlas] Probes fluctuation

On 2019-04-27 14:30, Rami Al-Dalky wrote:
> Hello,
> 
> I am running a number of one-off measurements and all what I request is
> 200 probes. However, I see a fluctuation in the number of participating
> probes (sometimes I get 198 and sometimes as low as 175). Any idea what
> is the issue?
> 
> Thanks a lot,
> Rami

Hi,

There's no single best answer to this.

It can be that you actually got the probes you wanted, but the results
were delivered later than expected (see here:
https://www.ripe.net/ripe/mail/archives/ripe-atlas/2019-April/003937.html)

It's also possible that the system didn't allocate the probes to you --
either because they were too busy at certain times, or we couldn't talk
to them, or there are not enough probes in general to satisfy your
request. It's hard to tell what's the exact cause from this distance.

Hope this helps,
Robert