[tor-bugs] #20963 [Core Tor/Tor]: [notice] The Tor Directory Consensus has changed how many circuits we must track to detect network failures from 0 to 20.

Tue Dec 13 21:38:45 UTC 2016

#20963: [notice] The Tor Directory Consensus has changed how many circuits we must
track to detect network failures from 0 to 20.
------------------------------+--------------------------
     Reporter:  arma          |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:  Tor: 0.2.8.9
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------
 Running Tor 0.2.8.9 under Yawning's sandboxed-tor-browser, I got this
 strange log message:
 {{{
 2016/12/13 15:48:04 tor: Dec 13 20:48:04.000 [notice] The Tor Directory
 Consensus has changed how many circuits we must track to detect network
 failures from 0 to 20.
 }}}

 I haven't seen it before. Also, my system ran out of disk space for a
 while before this notice came up.

 A) I don't think the consensus changed its parameter here, so it's weird
 that my Tor thinks it did. 20 is the default:
 {{{
 or.h:#define CBT_DEFAULT_RECENT_CIRCUITS 20
 }}}
 So where did 0 come from?

 B) If "A" remains a mystery, we should make sure there isn't some
 underlying bug where for example Tor starts ignoring things in the
 consensus after an event like
 {{{
 2016/12/13 13:48:04 tor: Dec 13 18:48:04.000 [warn] Error writing to
 "/home/amnesia/tor/data/cached-microdesc-consensus": No space left on
 device
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20963>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online