[tor-relays] tor network change and event detection

[George]

nusenu:
>> As some of you know, TDP did a little suite of shell scripts based on
>> OONI data to look at diversity statistics:
> 
> I think you mean onionoo (not OONI).

Yes.  Sloppy on details when thinking conceptually sometimes :)

> 
>> In other words, daily reports would be run on, say, bw consensus by
>> country, and if there was some statistically significant change over N
>> periods of time, it would be noted. Or if a particular OS drops or
>> jumps. Or if a particular AS jumps or declines for relays, bridges,
>> whatever.
> 
> something related:
> 
> https://nusenu.github.io/OrNetRadar/
> as ML: https://lists.riseup.net/www/info/ornetradar
> 
> https://nusenu.github.io/OrNetStats/
> 
> 
> Then there is (will be) metrics-bot, I made some feature requests
> similar to your examples above here:
> 
> https://trac.torproject.org/projects/tor/ticket/23937#comment:1
> 
> 
> also related:
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-consensus-health

This is all good stuff, some of which I've seen before.  Really impressive.

Maybe I'm missing something from my quick view of above, but I'm
thinking about more general reports about the network, though.

For instance, the OP was about a decline in relays in July, but it's not
being noticed until late October.

https://metrics.torproject.org/networksize.html?start=2017-06-01&end=2017-10-23

Was it picked up by any alerts earlier, especially those two big and
short-term drops?

Exception reports are generally drastic changes that might be noticeable
with general changes of the full snapshot of the network and its nodes.

Let me give this a bit more thought, but thanks nusenu.

g

-- 


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