[tor-bugs] #30782 [Core Tor/Tor]: Cache outdated fetched descriptors on directory authorities

[Tor Bug Tracker & Wiki]

#30782: Cache outdated fetched descriptors on directory authorities
------------------------------+--------------------------------------
     Reporter:  teor          |      Owner:  teor
         Type:  defect        |     Status:  assigned
     Priority:  Medium        |  Milestone:  Tor: 0.4.2.x-final
    Component:  Core Tor/Tor  |    Version:  Tor: unspecified
     Severity:  Normal        |   Keywords:  easy, intro, tor-dirauth
Actual Points:  0.2           |  Parent ID:  #16564
       Points:  0.2           |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------------------
 When tor starts fetching a descriptor due to a consensus, then replaces
 its consensus before the descriptor arrives, the descriptor is
 unrecognised.

 Directory caches keep the descriptor in the old descriptor cache, but
 clients and authorities drop it.

 But I think authorities should keep the descriptor, in case it is used in
 a future vote or consensus.

 This is a bug on tor 0.1.1.13-alpha.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30782>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online