[tor-relays] Fallback Directories - Upcoming Change

[Sebastian Hahn]

Hi,


> On 8. Apr 2021, at 14:50, David Goulet <dgoulet at torproject.org> wrote:
> On 07 Apr (21:43:50), Toralf Förster wrote:
>> On 4/7/21 9:04 PM, David Goulet wrote:
>>> Over time, we will remove or add more relays at each minor release if the set
>>> of fallback directories not working reaches a 25% threshold or more.
>> 
>> In the past a fallback dir volunteer committed himself to have address
>> and port stable for 2 years.
>> 
>> If a relay is now removed from the fallback directory list - how long
>> shall the Tor relay operator wait before he can change the address
>> and/or port?
> 
> No more requirements of such anymore. By selecting Stable and relays that have
> been around for a while, the theory is that the majority of relays of the
> selected list will be stable as in same address and port.
> 
> I do hope that overall in the network most relays do not change port/address
> often as relay stability is pivotal to an healthy network. But if so, our
> monitoring of the fallback directories will trigger an alert once too many
> relays are not working anymore as fallback and so we'll issue a new list.

Do we have some metrics in place to spot whether this
improves/degrades bootstrapping performance and how it
develops over time?

Cheers
Sebastian
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