[tor-bugs] #24425 [Core Tor/DirAuth]: Set the hsdir_spread_store parameter to 4 (or maybe even 5)

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Nov 28 21:37:05 UTC 2017

#24425: Set the hsdir_spread_store parameter to 4 (or maybe even 5)
 Reporter:  nickm             |          Owner:  (none)
     Type:  enhancement       |         Status:  new
 Priority:  Medium            |      Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/DirAuth  |        Version:
 Severity:  Normal            |     Resolution:
 Keywords:                    |  Actual Points:
Parent ID:                    |         Points:
 Reviewer:                    |        Sponsor:

Comment (by teor):

 If you write down a list of exactly what you want to know, we can probably
 collect some stats on ~18 HSDirs using PrivCount.
 We will also need an estimate of how much 1 client / service would
 contribute to each statistic in 10 minutes.

 We could do this in late December or January, depending on the other
 collections we're doing, and how long we need to collect for to get a good
 noise ratio. (We need to collect for longer if the totals are small
 compared to individual client contributions.)

 For example:

 Number of service descriptor uploads to HSDirs
 Estimate: 6 descriptors per service, uploaded every 30 - 90 minutes (Or is
 it every 2 hours? I can't remember.)

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24425#comment:4>
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