[tor-bugs] #21994 [Metrics/Consensus Health]: Consensus Health: what is the distribution of a bandwidth authority's measurements?

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#21994: Consensus Health: what is the distribution of a bandwidth authority's
measurements?
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 Reporter:  teor                      |          Owner:  tom
     Type:  enhancement               |         Status:  new
 Priority:  Very Low                  |      Milestone:
Component:  Metrics/Consensus Health  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by teor):

 Replying to [comment:4 tom]:
 > So I'm not sure exactly ewhat this is asking for, or how to implement
 it.  But as far as bwauth debugging information, what I have
 wanted/envisioned are the following:
 >
 > 1. A graph on Atlas, per-relay, that shows each bwauth's votes for that
 relay over time
 > 2. Something (maybe a graph) on Atlas, per-relay, that shows which
 scanner the bwauth made the measurement on
 > 3. A series of graphs that shows below/median/above bwauth buckets for
 relays where each graph only applies to one country's relays.
 > 4. A graph or series of graphs that shows bwauth variance on relays per-
 country.
 >
 >
 > (1) is for relay operators to understand why their bandwidth usage may
 have changed without requiring them to do some ugly consensus/vote
 grepping. But it requires changes to OnionOO and Atlas.
 >
 > (2) is also for relay operators, but also bwauth operators, to confirm
 that sometimes relays slip between scanner cracks. To perform the analysis
 at all, bwauth's need to apply this patch:
 https://gitweb.torproject.org/torflow.git/commit/?id=7e4ef735858acf5d2fbb183b6f8418b7fc2b364a
 To get it into Atlas, we need the data in OnionOO, and to get the data
 into OnionOO we need it in Collector, (#21378) and to get it into
 Collector we need it exposed by the bwauths (#21377).
 >
 > (3) Should confirm (or reject) the hypothesis that some bwauths make
 more high or low measurements because their geographic location hurts or
 helps them measure a disproportionate amount of the network.
 >
 > (4) Should confirm (or reject) the hypothesis that maybe, just maybe,
 our bwauths tend to agree with similarly-located bwauths for similarly-
 located relays.

 These seem like great ideas.
 Which do you think we should do first?

 > I'm not sure if any of those is what you said though.

 I think your suggestions are better than mine.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21994#comment:5>
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