[tor-bugs] #11410 [Onionoo]: Weird downtime counter in globe?

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#11410: Weird downtime counter in globe?
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     Reporter:  asn      |      Owner:  rndm
         Type:  defect   |     Status:  new
     Priority:  normal   |  Milestone:
    Component:  Onionoo  |    Version:
   Resolution:           |   Keywords:
Actual Points:           |  Parent ID:
       Points:           |
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Changes (by karsten):

 * component:  Globe => Onionoo


Comment:

 Oh!  I found the problem.

  - This bridge didn't have the `Running` flag in any of the bridge network
 statuses from the past 3 days (and maybe beyond).  It did have the `Valid`
 flag though, so it was listed in the status.
  - Onionoo sees the bridge and updates its `last_seen` field accordingly.
  - Globe sees it's not running and was last seen whenever Onionoo last
 updated that field, so it computes the bridge's "downtime".  While this
 approach works fine for relays which are only contained in a status if
 they're running, it doesn't work for bridges which are also contained if
 they're not running.

 So, three problems:

  - Why does Tonga think that a bridge that is hard-coded in the bundles is
 not running?
  - Onionoo should provide information when a bridge was last seen as
 running in addition to when the bridge was last seen in a status.  Or
 maybe it should only update `last_seen` when a bridge was actually
 running.  I don't know yet what's the right fix for this.
  - Depending on the Onionoo fix, Globe should use that new field to
 compute downtime, or do nothing because the `last_seen` field will have
 the meaning that Globe already expects.

 I'm stealing this ticket for the Onionoo component and will give it back
 if/when there's something to fix in Globe.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11410#comment:6>
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