[tor-bugs] #9968 [Tor]: Time out quicker on directory fetches while we're bootstrapping

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#9968: Time out quicker on directory fetches while we're bootstrapping
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 Reporter:  arma         |          Owner:
     Type:  enhancement  |         Status:  new
 Priority:  normal       |      Milestone:  Tor: 0.2.5.x-final
Component:  Tor          |        Version:
 Keywords:  tor-client   |  Actual Points:
Parent ID:               |         Points:
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 #9946 points out that "if one of our three guards is a bust, it will take
 120 seconds for requests to it to time out, and even if the other 2 guards
 are working great, that typically isn't enough to get to 80% bootstrapped.
 So there will remain cases where we wait 2 minutes to bootstrap -- and
 maybe this patch even increases the chance of those since any of the three
 guards can cause them."

 We should be more eager to either rotate to a different guard, or try
 another request in parallel, if a) we're not bootstrapped yet, b) we have
 directory questions we want answers to, and c) we've recently gotten good
 answers from our other guards.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9968>
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