[tor-bugs] #15942 [Core Tor/Tor]: Make tor connection failures random-exponential-backoff

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#15942: Make tor connection failures random-exponential-backoff
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 Reporter:  teor                                 |          Owner:  andrea
     Type:  defect                               |         Status:
 Priority:  High                                 |  needs_review
Component:  Core Tor/Tor                         |      Milestone:  Tor:
 Severity:  Normal                               |  0.2.9.x-final
 Keywords:  SponsorS, 028-triage, tor-dos,       |        Version:
  TorCoreTeam201606                              |     Resolution:
Parent ID:  #17293                               |  Actual Points:
 Reviewer:                                       |         Points:  3
                                                 |        Sponsor:
                                                 |  SponsorU-can
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Changes (by andrea):

 * status:  assigned => needs_review


Comment:

 Please review implementation in my bug15942 branch; this has been tested
 by unit tests for the random exponential backoff download schedule in
 src/test/test_dir.c, and by using iptables to block outgoing TCP
 connections while bootstrapping a client to observe backoffs in progress.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15942#comment:16>
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