[tor-bugs] #21394 [Core Tor/Tor]: connection timeouts are affecting Tor Browser usability

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#21394: connection timeouts are affecting Tor Browser usability
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 Reporter:  arthuredelstein                      |          Owner:  (none)
     Type:  defect                               |         Status:
                                                 |  merge_ready
 Priority:  Very High                            |      Milestone:  Tor:
                                                 |  0.3.2.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-performance, tbb-usability,      |  Actual Points:
  performance, tbb-needs                         |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by Dhalgren):

 Reviewed the prospective patch and see issues:

 1) appears settings override ones present in resolv.conf; if options are
 set in resolv.conf these should take precedence

 2) recommend incorporating recent commentary from above:  when one
 resolver present and no explicit setting in resolv.conf, set `attempts:3`
 in light of comment:55 or at a minimum `attempts:2` due to reality that
 `named` might be present and `attempts:1` will eliminate retries in that
 scenario

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21394#comment:58>
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