[tor-bugs] #33775 [Core Tor/sbws]: sbws measures some relays 100x less than Torflow

[Tor Bug Tracker & Wiki]

#33775: sbws measures some relays 100x less than Torflow
-------------------------+-------------------------------------------------
     Reporter:  teor     |      Owner:  (none)
         Type:  defect   |     Status:  new
     Priority:  Medium   |  Milestone:  sbws: 1.1.x-final
    Component:  Core     |    Version:
  Tor/sbws               |
     Severity:  Major    |   Keywords:  sbws-majority-blocker, sbws-roadmap
Actual Points:           |  Parent ID:
       Points:  2        |   Reviewer:
      Sponsor:           |
-------------------------+-------------------------------------------------
 Hi,

 I've received multiple reports from relay operators who are concerned
 their relays are being measured too low.

 At the moment, we only have 2 Torflow instances in the network, and 3 sbws
 instances. So bad sbws measurements can lower any relay's bandwidth,
 regardless of the Torflow measurement.

 Here is one report:
 https://lists.torproject.org/pipermail/tor-relays/2020-March/018321.html

 At the moment, the bandwidths are:

 moria1 494
 maatuska 4
 longclaw 5

 https://consensus-health.torproject.org/consensus-
 health-2020-03-31-21-00.html#6E1DA4C0B0C05FB721B42329C47A20DA22908AEB

 I have also received a similar report privately from a large relay
 operator.

 This bug could be related to #33009 or #30733.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33775>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online