[tor-bugs] #21969 [Core Tor/Tor]: We're missing descriptors for some of our primary entry guards

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#21969: We're missing descriptors for some of our primary entry guards
-----------------------------------------------+---------------------------
 Reporter:  asn                                |          Owner:  asn
     Type:  defect                             |         Status:
                                               |  needs_information
 Priority:  Immediate                          |      Milestone:  Tor:
                                               |  0.3.2.x-final
Component:  Core Tor/Tor                       |        Version:  Tor:
                                               |  0.3.0.6
 Severity:  Blocker                            |     Resolution:
 Keywords:  tor-guard, tor-bridge, tor-client  |  Actual Points:
Parent ID:                                     |         Points:  1.5
 Reviewer:                                     |        Sponsor:  SponsorU
-----------------------------------------------+---------------------------

Comment (by s7r):

 In order to reproduce the case where the hidden service becomes
 unavailable and does not recover:

 - have a relay with Guard flag that you control, take its fingerprint;
 - edit the '''state''' file of the Tor client instance where the hidden
 service is hosted and change the `confirmed_idx=0` fingerprint with the
 fingerprint of your own Guard;
 - shut down the guard relay temporarily (do not touch its fingerprint /
 identity);
 - wait for the valid descriptor for this guard that is in use on the Tor
 client instance to expire;

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21969#comment:49>
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