[tor-bugs] #23817 [Core Tor/Tor]: Tor re-tries directory mirrors that it knows are missing microdescriptors

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#23817: Tor re-tries directory mirrors that it knows are missing microdescriptors
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 Reporter:  teor                                 |          Owner:  (none)
     Type:  defect                               |         Status:
                                                 |  needs_revision
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-guard, tor-hs, prop224,          |  Actual Points:
  032-backport? 031-backport? spec-change        |
Parent ID:  #21969                               |         Points:
 Reviewer:                                       |        Sponsor:
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Changes (by asn):

 * status:  needs_review => needs_revision


Comment:

 Replying to [comment:37 nickm]:
 > I'd like to rename `TOO_FEW_BRIDGES_FOR_RESTRICTION` to
 `TOO_FEW_BRIDGES_FOR_MD_RESTRICTION` to clarify that it doesn't circumvent
 the restriction that prevents choosing the exit as the guard.
 >

 Agreed.

 > I don't know if I agree about "Don't set a restriction if we are on a
 restricted guard selection".  Shouldn't looking at the number of filtered
 guards be sufficient?
 >

 Hm, yes. I did the restricted guard selection set to guarantee that it
 won't apply to people who have pinned a single entry guard or something.
 Checking the number of filtered guards in that case could make sense. We
 could check the number of filtered guards against
 `TOO_FEW_BRIDGES_FOR_MD_RESTRICTION` (and maybe rename it appropriately).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23817#comment:38>
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