[tor-bugs] #22050 [Metrics/Consensus Health]: Consensus health is concerned about missing reveal values but it shouldn't

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#22050: Consensus health is concerned about missing reveal values but it shouldn't
-------------------------------------+-------------------------------------
     Reporter:  asn                  |      Owner:  tom
         Type:  defect               |     Status:  new
     Priority:  Medium               |  Milestone:
    Component:  Metrics/Consensus    |    Version:
  Health                             |   Keywords:  tor-hs consensus health
     Severity:  Normal               |  tor-srv
Actual Points:                       |  Parent ID:
       Points:                       |   Reviewer:
      Sponsor:                       |
-------------------------------------+-------------------------------------
 Hello,

 Sebastian the other day let me know that consensus health marks missing
 SRV reveal values as red, even when we are in commit phase and there
 shouldn't be any reveal values there.

 e.g.:

 {{{
 [V:1 A:sha3-256
 C:AAAAAFj9QADRCL8xJjqrEGCYLDD8rirah1ekzwwFtzwI1rbNUbr35g==(Empty)],
 [V:1 A:sha3-256
 C:AAAAAFj9QACpdT+YSqMfmqydd0pifsVDh6RXjFdUHjWFxDrJFOfKGQ==(Empty)],
 [V:1 A:sha3-256
 C:AAAAAFj9QACfd6bmG5brC5zEZT0OxA/q9b0pnTlWAkO45i0oaRah0Q==(Empty)],
 [V:1 A:sha3-256
 C:AAAAAFj9QAA9PtA2l5UnnKvp+t9NA0FQlLPe/RobysQU8Is6Zskb6w==(Empty)],
 [V:1 A:sha3-256
 C:AAAAAFj9QAB9yqvzx3kBe9Pm3dfOPDLsRQVhgLFvfFZ6FWil7gAPoQ==(Empty)],
 }}}

 It's perfectly normal that there are no reveal values, because from 00:00
 UTC to 12:00 UTC we have the commit phase where there are no reveals at
 all. From 12:00 UTC to 00:00 UTC there should be reveal values.

 I can see two fixes here:
 a) Easy fix: Stop having `(Empty)` with red letters to reduce reader
 anxiety.
 b) Involved fix: Check whether the vote is in commit phase or reveal phase
 (using `valid-after`) and only put `(Empty)` there when we are in reveal
 phase and there should be a reveal value there.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22050>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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