We can also personally email operators of high-bandwidth relays, and ask them to opt-in their relays.
And we can find existing operators of groups relays on the fallback whitelist, and ask them to opt-in their other relays. (Operators can opt-in any number of fallbacks, and we will select up to 7 fallbacks per operator.)
8/150 = 5% of fallbacks are currently down.
https://consensus-health.torproject.org/graphs.html
At this rate, it will be 2019 before we reach our 25% failure threshold.
So we don't need to do a fallback rebuild in 0.3.4.
Trac: Milestone: Tor: 0.3.4.x-final to Tor: 0.3.5.x-final
This task is done, we're about to merge the whitelist in #24805 (moved), and we're generating the new hard-coded list in #24803 (moved).
Phoul, if you can update this ticket's "Actual Points" with the number of days you spent on this task, that will help gaba with the project management.