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Re: [tor-bugs] #29710 [Core Tor/sbws]: Is it acceptable that SBWS consistently reports 6200 relays, 1000 fewer than Torflow's 7200 universe?



#29710: Is it acceptable that SBWS consistently reports 6200 relays, 1000 fewer
than Torflow's 7200 universe?
---------------------------+-----------------------------------
 Reporter:  starlight      |          Owner:  (none)
     Type:  defect         |         Status:  needs_information
 Priority:  Medium         |      Milestone:  sbws: unspecified
Component:  Core Tor/sbws  |        Version:  sbws: unspecified
 Severity:  Normal         |     Resolution:
 Keywords:                 |  Actual Points:
Parent ID:                 |         Points:
 Reviewer:                 |        Sponsor:
---------------------------+-----------------------------------

Comment (by teor):

 It looks like there might be a few bugs here.
 Let's discuss each bug in a separate ticket.

 Replying to [comment:10 juga]:
 > What i've being observing for some months and now is public:
 > {{{
 > recent_measurements_excluded_error_count=763
 > recent_measurements_excluded_few_count=733
 > recent_measurements_excluded_near_count=259
 > }}}

 Here's a ticket for the errors: #30226.

 > The last two makes the ~1000 relays less.
 > The scanner takes around 48h (i was wrong with my 24h estimation) to
 measure unique relays in the consensus, so it takes 4 days for each relay
 to have at least 2 measures (and not be excluded by `few`) and we're only
 considering 5.
 > There would be less relays excluded if we take only 1 measurement as
 valid or we consider more days of measurements.

 Here's a ticket for the few: #30227.
 I will write more on that ticket.

 > I don't have an explanation yet for the relays `near` that get measured
 again in less than 24h.

 Here's a ticket for the near: #30228.

 > A different thing for which i'll open a ticket as soon as i confirm, is
 that the number of the consensuses where the relay has been seen seems to
 be only 1, which doesn't make sense.

 What's the ticket number?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29710#comment:11>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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