[tor-bugs] #14224 [Tor]: Two minutes after a failed hidserv connection, we do a bonus hsdesc fetch

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#14224: Two minutes after a failed hidserv connection, we do a bonus hsdesc fetch
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     Reporter:  arma    |      Owner:
         Type:  defect  |     Status:  new
     Priority:  normal  |  Milestone:  Tor: 0.2.???
    Component:  Tor     |    Version:
   Resolution:          |   Keywords:  SponsorR, tor-hs
Actual Points:          |  Parent ID:
       Points:          |
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Comment (by arma):

 I talked to dgoulet about the options here, and we think the most
 plausible plan forward is to close this intro circuit when it gets a nack
 that causes the last intro point to be removed from our local copy of the
 hsdesc.

 In particular, at the bottom of rend_client_introduction_acked(), when
 rend_client_report_intro_point_failure() returns <1, that should be our
 cue to close the intro circuit.

 We might need to do it in such a way that we don't trigger an "oh gosh the
 intro circuit closed, quick, launch a descriptor fetch" conclusion though.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14224#comment:1>
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