[tor-bugs] #27049 [Core Tor/Tor]: "No circuits are opened" messages with onion services

[Tor Bug Tracker & Wiki]

#27049: "No circuits are opened" messages with onion services
--------------------------+------------------------------
 Reporter:  mikeperry     |          Owner:  mikeperry
     Type:  defect        |         Status:  needs_review
 Priority:  Medium        |      Milestone:
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:  033-backport  |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------
Changes (by mikeperry):

 * status:  assigned => needs_review


Old description:

> If a Tor instance is only doing onion service activity, and circuits time
> out, then the Tor client thinks that circuits aren't opened and gives
> them a full minute to complete. It also complains about this in the logs
> at notice level.
>
> The fix is simple. circuit_any_opened_circuits() in circuitlist.c is only
> counting circuits as opened if they use the DEFAULT_ROUTE_LEN. We just
> need to count >= DEFAULT_ROUTE_LEN to count them.

New description:

 If a Tor instance is only doing onion service activity, and circuits time
 out, then the Tor client thinks that circuits aren't opened and gives them
 a full minute to complete. It also complains about this in the logs at
 notice level, like this:

 {{{
 Aug 06 02:55:30.000 [notice] No circuits are opened. Relaxed timeout for
 circuit 21570 (a Hidden service: Pre-built vanguard circuit 4-hop circuit
 in state doing handshakes with channel state open) to 60000ms. However, it
 appears the circuit has timed out anyway.
 }}}



 The fix is simple. circuit_any_opened_circuits() in circuitlist.c is only
 counting circuits as opened if they use the DEFAULT_ROUTE_LEN. We just
 need to count >= DEFAULT_ROUTE_LEN to count them.

--

Comment:

 https://github.com/torproject/tor/pull/263

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27049#comment:1>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online