[tor-bugs] #9862 [Tor]: Tor hangs if you ask it to open too many ORPorts

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#9862: Tor hangs if you ask it to open too many ORPorts
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 Reporter:  zwol    |          Owner:
     Type:  defect  |         Status:  new
 Priority:  normal  |      Milestone:
Component:  Tor     |        Version:  Tor: 0.2.4.17-rc
 Keywords:          |  Actual Points:
Parent ID:          |         Points:
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 In order to do careful monitoring of an experiment I'm running over Tor, I
 wrote a bridge controller that allocates an ORPort to each client as it
 checks in.  Clients come and go; there are only ever about 20 of them at a
 time, but stale connections don't get cleaned up very quickly, so I wind
 up having to manage 100+ ORPorts.

 It appears that at some critical number of ORPorts -- the logs suggest 160
 -- Tor gets stuck halfway through the process of reinitializing itself;
 crucially, it doesn't ever respond to the SETCONF message, and it also
 stops processing all other input.

 I'm not sure whether this is *supposed* to be a supported configuration --
 it's certainly an *abnormal* configuration -- but it seems to me that if
 there is an upper limit, SETCONF should fail when you hit it, rather than
 having the relay just stop working.

 Debug logs attached.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9862>
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