[tor-bugs] #24769 [Core Tor/Tor]: Increase client idle and connection timeouts to reduce network load

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#24769: Increase client idle and connection timeouts to reduce network load
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:
                                                 |  mikeperry
     Type:  defect                               |         Status:
                                                 |  assigned
 Priority:  High                                 |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  0.3.1.1-alpha
 Severity:  Normal                               |     Resolution:
 Keywords:  must-fix-before-033-stable, tor-     |  Actual Points:
  client, dos-resistance, 032-backport,          |
  031-backport, 029-backport, 025-backport-      |
  maybe                                          |
Parent ID:                                       |         Points:  1
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by mikeperry):

 * status:  new => assigned
 * owner:  (none) => mikeperry


Comment:

 This also came up in #24228, where we found that Tor was creating a new
 circuit about every 6 seconds with this timeout.

 The goal is to learn a circuit build timeout within 30 minutes, so that
 unused orconn connections aren't padded by the netflow padidng for too
 long while we learn this timeout (which wastes bandwidth for clients that
 want less padding). In #24228, it looked like we may actually learn it
 within 10. So we could make this default 3X slower.

 I will look at this and work on a patch to change the default and make it
 a consensus param.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24769#comment:7>
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