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[tor-bugs] #21506 [Core Tor/Tor]: Client with current microdesc consensus but no descriptors chooses down fallback every time
#21506: Client with current microdesc consensus but no descriptors chooses down
fallback every time
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Reporter: teor | Owner:
Type: defect | Status: new
Priority: Medium | Milestone: Tor: unspecified
Component: Core Tor/Tor | Version: Tor: 0.2.8.1-alpha
Severity: Normal | Keywords: ipv6, tor-client
Actual Points: | Parent ID:
Points: 1 | Reviewer:
Sponsor: |
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Tor 0.2.9.9 doesn't have the fix for a similar issue in #20996, but
0.3.0.2-alpha does.
But this issue is different from that issue: the client downloads the
consensus, then tries the same fallback (a down fallback) every time.
This really shouldn't happen: the client should choose a different relay
every time.
My guess is that this relay is chosen because it's down, and all the up
relay descriptors are unavailable. This is pathological behaviour.
I think we fixed it in 0.3.0.2-alpha with the patch to #20996, but I'm
logging this bug just in case.
http://pastebin.ca/3769463
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21506>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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