[tor-bugs] #17864 [Tor]: Wait for busy authorities / fallback dir servers

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#17864: Wait for busy authorities / fallback dir servers
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     Reporter:  teor         |      Owner:
         Type:  enhancement  |     Status:  new
     Priority:  Medium       |  Milestone:  Tor: 0.2.8.x-final
    Component:  Tor          |    Version:
     Severity:  Normal       |   Keywords:  DoS
Actual Points:               |  Parent ID:  #17158
       Points:               |    Sponsor:  SponsorU
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 In 6c443e987d, we made the following change when selecting directory
 mirrors from the consensus:
     Tweak the 9969 fix a little

     If we have busy nodes and excluded nodes, then don't retry with the
     excluded ones enabled.  Instead, wait for the busy ones to be nonbusy.

 We should do the same thing when selecting hard-coded authorities /
 fallback dir servers.

 I have a patch for this.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17864>
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