[tor-bugs] #14763 [Tor]: Stochastic Guard Flag

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#14763: Stochastic Guard Flag
------------------------+---------------------
 Reporter:  anon        |          Owner:
     Type:  defect      |         Status:  new
 Priority:  normal      |      Milestone:
Component:  Tor         |        Version:
 Keywords:  guard flag  |  Actual Points:
Parent ID:              |         Points:
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 Stochastic Guard Flag symptom and the subsequent interruption of optimal
 contribution to the network.

 Tracking issue with some relays in family randomly losing Guard in
 consensus, and experiencing other low bandwidth situations sporadically.

 # Not affected (always Guard once Guard):
  *  Mozilla14 , 209.119.188.42_p80 ,
 globe.torproject.org/#/relay/12259E0A607EE888B23FBFA613C2F99E32408445
  *  Mozilla4 , 209.119.188.39_p443 ,
 globe.torproject.org/#/relay/629B222746E76B1D531969187EDB9397DEC00838

 # Randomish Guard loss affected:
  *  Mozilla13 , 209.119.188.42_p9090 ,
 globe.torproject.org/#/relay/95AC12EEFD2F89DBE4185E6B5B29ED0CAA5FFFE2
  *  Mozilla12 , 209.119.188.41_p9090 ,
 globe.torproject.org/#/relay/4DECCBA05C87BF208EA77C81B0BB1278B063884E
  *  Mozilla11 , 209.119.188.41_p443 ,
 globe.torproject.org/#/relay/07931503E96CBC4284EC04534D586FE63DB70992
  *  Mozilla10 , 209.119.188.38_p9090 ,
 globe.torproject.org/#/relay/BB1936B7D4F092CE83AE8590CAA07F7B56A7DF1B
  *  Mozilla9 , 209.119.188.38_p443 ,
 globe.torproject.org/#/relay/57791ADDC8A775A546A2AA8F327C1D2647990162
  *  Mozilla6 , 209.119.188.40_p443 ,
 globe.torproject.org/#/relay/9B0481C293B26E02994711046798D3D76A126F2E
  *  Mozilla5 , 209.119.188.40_p9090 ,
 globe.torproject.org/#/relay/C7E8746FE94A8318693F4EA81800149AA6A201C6
  *  Mozilla2 , 209.119.188.37_p9090 ,
 globe.torproject.org/#/relay/FD3BC0BEA5F73680E6F9F3BAC762160231DC3DB5

 Note about traffic graphs when not-Guard: the middle relays appear to be
 handling plenty of capacity; some delta between usage in Guard or not is
 based on this type difference. Consider mean consensus weight fraction
 along with guard / middle probabilities.

 Will update once consensus history is reviewed in detail for the period in
 question...

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14763>
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