[tor-bugs] #28639 [Core Tor/sbws]: After several days, most of the circuits timeout

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#28639: After several days, most of the circuits timeout
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 Reporter:  juga                          |          Owner:  (none)
     Type:  defect                        |         Status:
                                          |  needs_information
 Priority:  Medium                        |      Milestone:  sbws:
                                          |  1.0.x-final
Component:  Core Tor/sbws                 |        Version:
 Severity:  Normal                        |     Resolution:
 Keywords:  sbws-1.0-must-moved-20181128  |  Actual Points:
Parent ID:  #25925                        |         Points:
 Reviewer:                                |        Sponsor:
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Comment (by juga):

 Replying to [comment:12 teor]:
 > This issue is an instance of #27049: sbws does not open any 3-hop
 circuits, so it stalls when all 3-hop circuits time out.

 I don't understand this sentence.
 I guess the 3-hop circuits are open by Tor to download descriptors and
 network status documents?.
 Wouldn't new 3-hop circuits be created when other 3-hop circuits timeout?.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28639#comment:16>
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