[metrics-bugs] #26303 [Core Tor/Tor]: IPv6-Flagging of Relay not accurate

[Tor Bug Tracker & Wiki]

#26303: IPv6-Flagging of Relay not accurate
-------------------------------+-----------------------------------
 Reporter:  ruebezahl          |          Owner:  metrics-team
     Type:  defect             |         Status:  needs_information
 Priority:  Medium             |      Milestone:  Tor: unspecified
Component:  Core Tor/Tor       |        Version:  Tor: 0.3.3.6
 Severity:  Normal             |     Resolution:
 Keywords:  ipv6 035-proposed  |  Actual Points:
Parent ID:  #24403             |         Points:
 Reviewer:                     |        Sponsor:
-------------------------------+-----------------------------------
Changes (by teor):

 * status:  reopened => needs_information
 * component:  Core Tor/DirAuth => Core Tor/Tor
 * parent:   => #24403


Comment:

 We don't have enough information to diagnose this issue.
 It could be a bug in Core Tor, metrics, or the relay's IPv6 connectivity.

 In most cases that we investigate, the problem is on the relay, or the
 relays network. (It's more likely that one operator has made a mistake,
 than 6 directory authorities.)
 In some cases, Onionoo is outdated.

 If it is a bug in Tor, it could be #24864, where some directory
 authorities take a while to vote on new descriptors. We added #24862 to
 consensus health to diagnose that issue. So if it happens again, please
 tell us the descriptor timestamp from consensus health, and the descriptor
 timestamp from the relay itself:
 http://217.115.10.131/tor/server/authority

 Ultimately, we will resolve this issue (or make it much easier to
 diagnose) by making relays check their own IPv6 addresses in #24403.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26303#comment:8>
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