[tor-bugs] #14261 [Tor]: Directory authority refuses vote fetch with "Too much data received from directory connection"

[Tor Bug Tracker & Wiki]

#14261: Directory authority refuses vote fetch with "Too much data received from
directory connection"
--------------------+------------------------------------
 Reporter:  arma    |          Owner:
     Type:  defect  |         Status:  new
 Priority:  normal  |      Milestone:  Tor: 0.2.6.x-final
Component:  Tor     |        Version:
 Keywords:          |  Actual Points:
Parent ID:          |         Points:
--------------------+------------------------------------
 My directory authority just failed to make a consensus this round, and its
 notice-level logs include:
 {{{
 Jan 17 13:52:31.570 [notice] We're missing votes from 8 authorities
 (14C131DFC5C6F93646BE72FA1401C02A8DF2E8B4
 E8A9C45EDE6D711294FADF8E7951F4DE6CA56B58
 ED03BB616EB2F60BEC80151114BB25CEF515B226
 585769C78764D58426B8B52B6651A5A71137189A
 80550987E1D626E3EBA5E5E75A458DE0626D088C
 49015F787433103580E3B66A1707A00E60F2D15B
 EFCBE720AB3A82B99F9E953CD5BF50F7EEFC7B97
 23D15D965BC35114467363C165C4F724B64B4F66). Asking every other authority
 for a copy.
 Jan 17 13:52:33.134 [warn] Too much data received from directory
 connection (154.35.32.5): denial of service attempt, or you need to
 upgrade?
 Jan 17 13:52:34.187 [warn] Too much data received from directory
 connection (131.188.40.189): denial of service attempt, or you need to
 upgrade?
 Jan 17 13:52:37.068 [warn] Too much data received from directory
 connection (194.109.206.212): denial of service attempt, or you need to
 upgrade?
 Jan 17 13:52:38.146 [warn] Too much data received from directory
 connection (208.83.223.34): denial of service attempt, or you need to
 upgrade?
 Jan 17 13:52:41.339 [warn] Too much data received from directory
 connection (86.59.21.38): denial of service attempt, or you need to
 upgrade?
 Jan 17 13:52:44.722 [warn] Too much data received from directory
 connection (193.23.244.244): denial of service attempt, or you need to
 upgrade?
 Jan 17 13:53:23.528 [warn] Too much data received from directory
 connection (171.25.193.9): denial of service attempt, or you need to
 upgrade?
 }}}

 It looks like our current limit of 10MB is too low for fetching all votes
 at once?

 (I guess a second question is: did we really mean for Tor to ask for 10+
 megabytes from each of 8 places in parallel?)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14261>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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