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Re: [tor-bugs] #15775 [Tor]: Add IPv4 Fallback Directory List to tor, active by default
#15775: Add IPv4 Fallback Directory List to tor, active by default
-------------------------+-------------------------------------------------
Reporter: teor | Owner: teor
Type: | Status: needs_revision
enhancement | Milestone: Tor: 0.2.7.x-final
Priority: major | Version: Tor: 0.2.4.7-alpha
Component: Tor | Keywords: tor-dist, 027-triaged-1-in,
Resolution: | TorCoreTeam201508
Actual Points: | Parent ID: #15228
Points: |
-------------------------+-------------------------------------------------
Changes (by teor):
* status: needs_information => needs_revision
Comment:
Currently, our top fallback directories are weighted around 2%-3% of the
total eligible fallback directory weight. It's possible to reduce that to
around 1.6% by redistributing some of the consensus weight across the rest
of the relays (or, equivalently, reducing the consensus weight of those
relays to some maximum). But making the maximum less than about 1.5% tends
to warp the distribution of weights too much.
The updated code is in my teor2345 github branch `feature15775-fallback-
update-v2`.
I still need to implement whitelisting and blacklisting of fallback
directories in the script.
Is it OK if a fallback directory sees 1 in 50 client bootstraps (2%)?
(The final figure may change depending on how many relays opt-in to be
fallback directories.)
We'd need to widen eligibility criteria a bit to get it down to 1%.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15775#comment:37>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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