[tor-bugs] #15482 [Tor]: Don't surprise users with new circuits in the middle of browsing
Tor Bug Tracker & Wiki
blackhole at torproject.org
Fri Jul 24 22:57:01 UTC 2015
#15482: Don't surprise users with new circuits in the middle of browsing
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Reporter: | Owner: mikeperry
mikeperry | Status: needs_information
Type: | Milestone: Tor: 0.2.7.x-final
enhancement | Version:
Priority: normal | Keywords: tbb-usability, MikePerry201503,
Component: Tor | tbb-wants, TorBrowserTeam201507R
Resolution: | Parent ID:
Actual Points: |
Points: |
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Comment (by yawning):
From an IRC discussion with arma today...
This is probably contributing to things like:
https://tor.stackexchange.com/questions/7164/why-do-relays-not-end-idle-
tcp-sessions
(TLDR: Someone is running a relay on a gigabit residential line behind an
ISP supplied awful router, and it ends up being underutilized because the
NAT table fills up.)
Since channels are torn down after the last circuit is destroyed,
extending circuit lifespan will increase the number of open channels at a
given time, this new behavior probably is increasing the damage done by
relays on residential lines to network health.
IMO it's not a reason to kill this feature since this problem will crop up
as the network and our userbase grows (As the number of users tends
towards infinity, the number of channels required at any given time gets
closer and closer to the total number of relays in the network for a
middle relay).
Metrics on the number of open circuits/channels on a given relay may be
useful to get an idea about what we should ask of relay operators.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15482#comment:26>
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