[tor-bugs] #7157 [Tor]: "Low circuit success rate %u/%u for guard %s=%s."

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#7157: "Low circuit success rate %u/%u for guard %s=%s."
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 Reporter:  arma                         |          Owner:                    
     Type:  enhancement                  |         Status:  needs_review      
 Priority:  normal                       |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor                          |        Version:                    
 Keywords:  tor-client, MikePerry201210  |         Parent:                    
   Points:                               |   Actualpoints:  8                 
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Comment(by mikeperry):

 Commenting here to checkpoint my progress for tomorrow.

 I appear to have found at least one bug in testing so far: There appears
 to be a discrepancy between the PathBias timeout counting and the CBT
 right-censored CircuitBuildAbandonedCount values..

 I think the error is in circuit_expire_building() and the difference
 between the calls to circuit_build_times_count_close() and
 pathbias_count_timeout().. I still haven't fully conceptualized all of the
 various cases of circuit_expire_building() though. Man is it a hairy mess.
 :/

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7157#comment:6>
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