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

[Tor Bug Tracker & Wiki]

#15942: Make tor connection failures random-exponential-backoff
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 Reporter:  teor                |          Owner:
     Type:  defect              |         Status:  new
 Priority:  major               |      Milestone:  Tor: 0.2.7.x-final
Component:  Tor                 |        Version:
 Keywords:  SponsorS, SponsorU  |  Actual Points:
Parent ID:  #15940              |         Points:
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 Every connection request in tor could be modified to random-exponential-
 backoff on failure.

 This would resolve repeated-connection overloading issues in general.

 In particular, it would reduce the risk that old versions would DoS the
 authorities (or fallback directories, see #15775 / #15228) when the
 clients are switched off.

 Connections to authorities are a priority for this change, then directory
 servers.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15942>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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