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

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#13718: Reachability Tests aren't conducted if there are no exit nodes
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     Reporter:  tom     |      Owner:
         Type:  defect  |     Status:  new
     Priority:  normal  |  Milestone:  Tor: 0.2.???
    Component:  Tor     |    Version:
   Resolution:          |   Keywords:  tor-relay test-network lorax
Actual Points:          |  Parent ID:
       Points:          |
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Comment (by teor):

 Around 1-10% of chutney runs show an error like this on my OS X
 (multiprocessor) system, and chutney's transmission test fails. This
 condition can persist for well over 30 minutes, when a normal run of this
 chutney net succeeds within 18 seconds.

 This appears to be exacerbated by:
 * the existing shorter intervals set for TestingTorNetwork
 * the custom shorter intervals set in the chutney templates
 * larger numbers of tor processes
 * in particular, larger numbers of authorities in the test network
 * background system load (e.g. compilation)

 In this particular case, it looks like a race condition around chutney-
 launched tor processes causes this issue.

 If it would help, I can provide logs, or try to produce a chutney net
 configuration with a larger failure rate.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13718#comment:2>
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