[tor-bugs] #22310 [Core Tor/Tor]: Tor 0.3.x clients won't use Guard-flagged relays as Guards if they don't have V2Dir, throwing off consensus position weights

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#22310: Tor 0.3.x clients won't use Guard-flagged relays as Guards if they don't
have V2Dir, throwing off consensus position weights
--------------------------+------------------------------------
 Reporter:  arma          |          Owner:
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Comment (by arma):

 One fix we should consider is simply not assigning the Guard flag if we
 aren't going to assign the V2Dir flag. Consider:
 {{{
 $ grep "^s " cached-consensus |grep Guard|wc -l
 2509
 $ grep "^s " cached-consensus |grep Guard|grep -v "V2Dir"|wc -l
 244
 }}}

 I haven't added up the capacity/speed/bandwidth/whatever of these relays
 for comparison though.

 But since they essentially already *aren't* guards for Tor 0.3 and later
 clients, maybe that makes the choice easier?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22310#comment:1>
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