[tor-bugs] #11327 [Tor]: Dir auths should choose Fast and Guard flags by consensus weight if they don't measure

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#11327: Dir auths should choose Fast and Guard flags by consensus weight if they
don't measure
-------------------------------------------------+-------------------------
 Reporter:  arma                                 |          Owner:  TvdW
     Type:  defect                               |         Status:
 Priority:  High                                 |  needs_revision
Component:  Tor                                  |      Milestone:  Tor:
 Severity:  Normal                               |  0.2.9.x-final
 Keywords:  tor-auth, 026-triaged-1,             |        Version:  Tor:
  027-triaged-1-in                               |  0.2.7
Parent ID:                                       |     Resolution:
 Reviewer:                                       |  Actual Points:
                                                 |         Points:
                                                 |  small/medium
                                                 |        Sponsor:
                                                 |  SponsorU-can
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Comment (by TvdW):

 Quick update from IRC: we talked about alternatives and one thing that
 came up is to have the consensus generation process take care of this
 instead, as only there do we have enough information to make the right
 call about whether to take from all bandwidth authorities or only the ones
 with bandwidth scanners.

 This would effectively introduce first and second class dirauths: first
 class dirauths vote for these flags, and the second class dirauths'
 opinion only counts if there aren't enough voters around.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11327#comment:19>
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