[tor-bugs] #31657 [Core Tor/Tor]: Rephrase "missing descriptors" notice log to be less confusing

[Tor Bug Tracker & Wiki]

#31657: Rephrase "missing descriptors" notice log to be less confusing
-------------------------+-------------------------------------------------
     Reporter:  teor     |      Owner:  teor
         Type:  defect   |     Status:  assigned
     Priority:  Medium   |  Milestone:  Tor: 0.4.2.x-final
    Component:  Core     |    Version:  Tor: 0.3.0.6
  Tor/Tor                |   Keywords:  fast-fix, log, doc?, tor-guard,
     Severity:  Normal   |  tor-bridge, tor-client
Actual Points:           |  Parent ID:  #21969
       Points:  0.1      |   Reviewer:
      Sponsor:           |
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 Some operators are confused or alarmed by these logs:
 {{{
 Sep 05 03:22:50.000 [notice] Our directory information is no longer up-to-
 date enough to build circuits: We're missing descriptors for 1/3 of our
 primary entry guards (total microdescriptors: 6515/6541).
 Sep 05 03:22:50.000 [notice] I learned some more directory information,
 but not enough to build a circuit: We're missing descriptors for 1/3 of
 our primary entry guards (total microdescriptors: 6515/6541).
 }}}

 We should rephrase them or document that:
 * tor tries to keep active 3 primary guards for anonymity and safety
 * we'll try to get new microdescs soon
 * tor usually recovers quickly from this issue

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31657>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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