commit 124c342364a354608a6569fa79192c0f92a7f6f5 Author: teor teor2345@gmail.com Date: Wed Dec 7 15:58:57 2016 +1100

Reduce fallback bandwidth requirement to 1 MByte/s --- changes/fallbacks-201612 | 2 ++ scripts/maint/updateFallbackDirs.py | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/changes/fallbacks-201612 b/changes/fallbacks-201612 index 8351642..96ae658 100644 --- a/changes/fallbacks-201612 +++ b/changes/fallbacks-201612 @@ -23,6 +23,8 @@ Closes ticket 20908. - Allow 3 fallbacks per operator. (This is safe now we are choosing 200 fallbacks.) Closes ticket 20912. + - Reduce the minimum fallback bandwidth to 1 MByte/s. + Part of #18828. o Minor bugfix (fallback directories): - Stop failing when OUTPUT_COMMENTS is True in updateFallbackDirs.py. Closes ticket 20877; bugfix on commit 9998343 in tor-0.2.8.3-alpha. diff --git a/scripts/maint/updateFallbackDirs.py b/scripts/maint/updateFallbackDirs.py index c3488fa..a7c86d0 100755 --- a/scripts/maint/updateFallbackDirs.py +++ b/scripts/maint/updateFallbackDirs.py @@ -191,12 +191,12 @@ MAX_FALLBACKS_PER_FAMILY = 3 EXIT_BANDWIDTH_FRACTION = 1.0

# If a single fallback's bandwidth is too low, it's pointless adding it -# We expect fallbacks to handle an extra 30 kilobytes per second of traffic +# We expect fallbacks to handle an extra 10 kilobytes per second of traffic # Make sure they can support a hundred times the expected extra load # (Use 102.4 to make it come out nicely in MByte/s) # We convert this to a consensus weight before applying the filter, # because all the bandwidth amounts are specified by the relay -MIN_BANDWIDTH = 102.4 * 30.0 * 1024.0 +MIN_BANDWIDTH = 102.4 * 10.0 * 1024.0

# Clients will time out after 30 seconds trying to download a consensus # So allow fallback directories half that to deliver a consensus