Generate a new fallback list and backport it

I can generate a new list over the weekend. This will be easier once all the other children of #22271 (moved) merge.

changed milestone to %Tor: 0.3.2.x-final

added 029-backport 030-backport 031-backport 032-backport actualpoints::0.5 component::core tor/fallback scripts fallback milestone::Tor: 0.3.2.x-final owner::teor parent::22271 points::0.5 priority::medium resolution::implemented severity::normal status::closed type::enhancement labels

Trac:
fallback_dirs_2018_01_06_2323_UTC_44aa1adf35_AU.inc

Fallback list generated from Australia

Trac:
fallback_dirs_2018_01_06_2323_UTC_44aa1adf35_AU.log

Fallback log for the list generated from Australia

I generated a list from the master branch, and attached it to this ticket. (We have merged all the tor children of #22271 (moved).)

The generated list has 139 entries. That's ok. (Ideally, I'd like 150, but right now that might not be possible. We can try for 150-200 next time in #24786 (moved).)

I think pastly is building a list as well (or has built a list). I have no good way of choosing between different lists. They should be interchangeable. Unless we come up with a better idea, let's just choose the list with the largest number of fallbacks.

Trac:
Status: assigned to needs_information
Cc: teor@torproject.org to teor@torproject.org, pastly

Adding my output. Ran in OVH's Canadian DC.

Trac:
fallback_dirs_2018_01_06_CA.log

Trac:
fallback_dirs_2018_01_06_CA.inc

Diff and grep suggest that there are 11 fallbacks in the CA list but not the AU list; and that there are 7 in the AU list but not the CA list. If I can arithmetic properly, that means there are 150 in the union of the two lists, and 132 in the intersection.

I am happy taking either the union or the intersection. If nobody tells me which way to go today, I'll pick the union.

Yes, let's go with the union. A fallback is still valuable even if it's up half the time. (That's particularly true right now, with the network under extra load, and a bit more unstable than usual.)

Merged pastly's file to 0.2.9 in 491c09c19a842b7c3d67ad25dd5b14aeec9b665b; added the extra entries from teor's file in a42e52dded44a2c58a7200511e27a5c0e01cd78b; added a changes file in 9464da210d3214fc094f5fc3b2c229470dbea59c

Trac:
Status: needs_information to closed
Resolution: N/A to implemented

Remove useless Cc

Trac:
Cc: teor@torproject.org, pastly to pastly

closed

changed time estimate to 4h

added 4h of time spent

moved to tpo/core/fallback-scripts#24801 (closed)