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Re: [tor-bugs] #3792 [Tor bundles/installation]: TBB takes too long to start up

#3792: TBB takes too long to start up
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 Reporter:  phobos                    |          Owner:  mikeperry
     Type:  enhancement               |         Status:  assigned 
 Priority:  normal                    |      Milestone:           
Component:  Tor bundles/installation  |        Version:           
 Keywords:                            |         Parent:           
   Points:                            |   Actualpoints:           
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Comment(by arma):

 Replying to [comment:1 mikeperry]:
 > For #2, Tor should be creating test circuits using an existing stable or
 fallback consensus without the need to wait to download a very fresh one
 just to test network access. I thought there was some form of ticket for a
 long-term/fallback consensus, but I cannot find it.

 See #572.

 But what do you mean by 'test circuits'? Tor makes circuits to use them,
 and it should not make circuits with an old consensus -- see also #2878.
 And it shouldn't indicate 100% bootstrapped until it has a circuit that
 can be used.

 > For #4, Tor should be pre-creating a circuit suitable for check in all
 cases. I believe it already does this?

 If you are unlucky enough to choose two exit relays that exit to 80 but
 not 443, then you won't have a preemptive circuit available. I guess we
 could kickstart ourselves with 80 *and* 443 -- somebody should sort out if
 that would give us more expected preemptive circuits or if it would be
 about the same number in practice.

 > In any case, we should perhaps also have the option to use the fallback
 consensus for actual circuits while Tor downloads a fresh consensus, or at
 least to be able to use it for check.

 Building circuits using relays and keys from n days ago, where n is
 something your adversaries might find interesting about you, seems like a
 bad move here.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3792#comment:16>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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