[tor-bugs] #13718 [Tor]: Reachability Tests aren't conducted if there are no exit nodes

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Dec 10 00:17:58 UTC 2014


#13718: Reachability Tests aren't conducted if there are no exit nodes
-------------------------+-------------------------------------------------
     Reporter:  tom      |      Owner:  teor
         Type:  defect   |     Status:  assigned
     Priority:  normal   |  Milestone:  Tor: 0.2.6.x-final
    Component:  Tor      |    Version:  Tor: 0.2.6.1-alpha
   Resolution:           |   Keywords:  tor-relay test-network lorax
Actual Points:           |  chutney 026-deferrable
       Points:           |  Parent ID:
-------------------------+-------------------------------------------------

Comment (by teor):

 A relay with AssumeReachable 0 now makes it into the consensus after
 around 30-40 seconds.
 The minimum time should be (each consensus is 10 seconds apart with a 4s
 lead-up):
 * 1 consensus to determine available relays, excluding this one (4s,
 initial consensus)
 * some time to download descriptors, and make an initial connection
 * some time to make a connection to ourselves for ORPort self-testing
 * some time to rebuild and upload descriptor
 * 1 consensus to determine available relays, including this one (4s-14s)
 So if we can spend up to 18 seconds simply building consensuses, 30-40
 seconds is a fair amount of elapsed time to complete this whole process.

 This probably means we should increase the default src/test/test-
 network.sh bootstrap time to 40 seconds.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13718#comment:29>
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