[tor-bugs] #21052 [Core Tor/Tor]: Bad prop271 behavior when exhausting all guards

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#21052: Bad prop271 behavior when exhausting all guards
--------------------------------------------+------------------------------
 Reporter:  asn                             |          Owner:  nickm
     Type:  defect                          |         Status:  needs_review
 Priority:  High                            |      Milestone:  Tor:
                                            |  0.3.0.x-final
Component:  Core Tor/Tor                    |        Version:
 Severity:  Normal                          |     Resolution:
 Keywords:  prop271, tor-guard, regression  |  Actual Points:  0.6
Parent ID:  #20822                          |         Points:  1.5
 Reviewer:                                  |        Sponsor:
--------------------------------------------+------------------------------
Changes (by asn):

 * status:  accepted => needs_review
 * actualpoints:   => 0.6


Comment:

 Please check branch `bug21052` in my repo for a simple fix where it marks
 all guards for retry when we exhaust our sampled set. I tested it and it
 seems to work. Will be doing tests with my Tor browser the following days.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21052#comment:3>
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