[tor-bugs] #23101 [Core Tor/Tor]: Predict and build specific HS purpose circuits (rather than GENERAL)

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#23101: Predict and build specific HS purpose circuits (rather than GENERAL)
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 Reporter:  mikeperry                            |          Owner:
                                                 |  mikeperry
     Type:  enhancement                          |         Status:
                                                 |  merge_ready
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-hs, tor-guard, guard-discovery-  |  Actual Points:
  prop247-controller, review-group-27, review-   |
  group-30                                       |
Parent ID:  #13837                               |         Points:
 Reviewer:  asn                                  |        Sponsor:
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Comment (by mikeperry):

 Replying to [comment:29 arma]:
 > Replying to [comment:26 teor]:
 > > But maybe it is better to always do vanguards for internal circuits.
 Do we know if the onion service attacks apply to other circuits?
 >
 > Another fun example is testing circuits. If you've set some Vanguards,
 that means you're primarily concerned with onion service (or onion client)
 performance. Does that mean your internal testing circuits should be using
 your Vanguards too? Seems like there's a good argument for yes.

 Which testing are you talking about here, and how does that impact
 performance? Do you mean CIRCUIT_PURPOSE_TESTING, or the CBT stuff? The
 CBT aspects of this were handled in #23100. The CIRCUIT_PURPOSE_TESTING is
 just router reachability, right?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23101#comment:31>
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