[tor-bugs] #8387 [Core Tor/Tor]: Unbuilt one-hop circuits sometimes hang around forever

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Nov 8 23:17:17 UTC 2016


#8387: Unbuilt one-hop circuits sometimes hang around forever
-------------------------------------------------+-------------------------
 Reporter:  mikeperry                            |          Owner:  nickm
     Type:  defect                               |         Status:
                                                 |  needs_information
 Priority:  High                                 |      Milestone:  Tor:
                                                 |  0.2.???
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-client, 025-triaged,             |  Actual Points:
  027-triaged-1-out 2016-bug-retrospective       |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by teor):

 Replying to [comment:50 pastly]:
 > I'm getting output related to this ticket every heartbeat it looks like.
 Running 0294-alpha as a single onion service.
 >
 > The real-time up-to-date log is http://bh2lpa5qyawryvk2.onion/log
 >
 > Tor 0.2.9.4-alpha (git-8b0755c9bb296ae2) running on Linux with Libevent
 2.0.10-stable, OpenSSL 1.0.1t and Zlib 1.2.8.
 >
 > Snippit:
 >
 > {{{
 > ...
 > Nov 07 07:50:00.000 [notice] Diagnostic for issue 8387: Found 3 one-hop
 circuits more than 1800 seconds old! Logging 3...
 > Nov 07 07:50:00.000 [notice]   #0 created at 2016-11-06 23:49:39. open,
 Hidden service: Introduction point. Not marked for close. Package window:
 1000. usable for new conns. Not marked dirty.
 > Nov 07 07:50:00.000 [notice]   #1 created at 2016-11-06 18:23:40. open,
 Hidden service: Introduction point. Not marked for close. Package window:
 1000. usable for new conns. Not marked dirty.
 > Nov 07 07:50:00.000 [notice]   #2 created at 2016-11-07 05:29:55. open,
 Hidden service: Introduction point. Not marked for close. Package window:
 1000. usable for new conns. Not marked dirty.
 > ...
 > }}}

 There was a time when only directory connections were one-hop, and they
 were expected to finish up quickly.

 With single onion services, the `Hidden service: Introduction point`
 circuits are intentionally long-term, one-hop circuits.

 I've split off this specific issue into #20613.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8387#comment:51>
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