[tor-bugs] #21969 [Core Tor/Tor]: We're missing descriptors for some of our primary entry guards

[Tor Bug Tracker & Wiki]

#21969: We're missing descriptors for some of our primary entry guards
-----------------------------------+------------------------------------
 Reporter:  asn                    |          Owner:  asn
     Type:  defect                 |         Status:  assigned
 Priority:  High                   |      Milestone:  Tor: 0.3.1.x-final
Component:  Core Tor/Tor           |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:  tor-guard, tor-bridge  |  Actual Points:
Parent ID:                         |         Points:  1.5
 Reviewer:                         |        Sponsor:  SponsorU
-----------------------------------+------------------------------------

Comment (by asn):

 Replying to [comment:27 s7r]:
 > OK getting close.
 >
 > So I have manually edited my state file and added a guard I control as
 first primary guard with `confirmed_idx=0`. It was running just fine with
 no complaints. At some point, I have configured in torrc of the guard
 '''PublishServerDescriptor 0''' so that it will stop publishing
 descriptors. The client instance running the debug branch did not complain
 instantly because it had a descriptor that was still valid, and the first
 primary guard while not wanting to publish descriptors any longer was
 still running and accepting connections.
 >

 Thanks for the logs, however I'm not sure if `PublishServerDescriptor 0`
 is the right methodology to reproduce this bug. Doing that will make your
 relay do the weird thing of not being in the consensus but still accepting
 connections. I'm not sure how that behavior influences the guard algorithm
 exactly and it might complicate the analysis here. I think the easiest
 test thing to do would be to just shut down your guard relay like normal,
 and check if the guard is still in the primary guard list when it exits
 the consensus.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21969#comment:28>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online