[tor-bugs] #33029 [Core Tor/Tor]: dir-auth: Never send a 503 directory request code to another directory authority

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#33029: dir-auth: Never send a 503 directory request code to another directory
authority
------------------------------+--------------------------------
     Reporter:  dgoulet       |      Owner:  dgoulet
         Type:  defect        |     Status:  assigned
     Priority:  Medium        |  Milestone:  Tor: 0.4.3.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  tor-dirauth
Actual Points:                |  Parent ID:  #33018
       Points:  0.2           |   Reviewer:
      Sponsor:                |
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 This is a child ticket from #33018.

 The idea here is that even if we hit the global write limit (bw), we
 should not return 503 code but rather answer another directory authority.

 Dirauth _must_ be able to talk to each other at all time regardless of the
 bandwidth state.

 Setting 043 milestone because this should be considered a bug and could
 even be considered for backport since dirauth are suffering from this at
 the moment.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33029>
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