[tor-bugs] #4483 [Tor]: If k of n authorities are down, k/n bootstrapping clients are delayed for minutes

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#4483: If k of n authorities are down, k/n bootstrapping clients are delayed for
minutes
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 Reporter:  arma                                 |          Owner:  teor
     Type:  defect                               |         Status:
 Priority:  High                                 |  needs_review
Component:  Tor                                  |      Milestone:  Tor:
 Severity:  Normal                               |  0.2.8.x-final
 Keywords:  performance, bootstrap, dirauth-     |        Version:
  dos-resistance, tor-client, large-feature,     |     Resolution:
  prop210, 028-triage, TorCoreTeam201512,        |  Actual Points:
  MikePerry201512R                               |         Points:
Parent ID:  #2664                                |  medium/large
  Sponsor:  SponsorU                             |
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Comment (by nickm):

 Okay, I think I get it.  Thanks for all the replies and comments; this
 patch is looking good.

 Last questions:
    * How have you tested this in the wild?  How well does it do?  How sure
 are you that it doesn't open a lot of extra connections, and that it
 actually behaves as you think it does?
    * Could you do one last rebase to squash the fixup! commits and remove
 the reverted commits? I could try to do that, but I got conflicts when I
 did, and I'm worried about getting it wrong.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4483#comment:46>
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