Re: [tor-bugs] #9574 [Tor]: Process ntor create cells before tap create cells?

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#9574: Process ntor create cells before tap create cells?
-----------------------------+---------------------------------------
     Reporter:  arma         |      Owner:
         Type:  enhancement  |     Status:  needs_review
     Priority:  normal       |  Milestone:  Tor: 0.2.5.x-final
    Component:  Tor          |    Version:
   Resolution:               |   Keywords:  tor-relay, maybe-proposal
Actual Points:               |  Parent ID:
       Points:               |
-----------------------------+---------------------------------------

Comment (by isis):

 To update, now I'm not sure how well this is working. It's definitely not
 doing ''worse'', and it ''might'' be doing better. But I am once again
 getting warning messages on my test relay that tor's fd usage is at 90% of
 its maximum. The NTOR queue is pretty consistently empty, and the TAP
 queue seems to fluctuate around the 300-400 range. One problem which seems
 to have surfaced is that the EXTENDCIRCUIT cells have expired by the time
 they reach the front of the TAP queue, so Nick's idea to create some sort
 of probabilistic prioritization of NTOR requests is probably a good idea.

 {{{
 9/2/2013 17:09:33 [INFO] onion_pending_add(): Circuit create request is
 too old; canceling due to overload.
 9/2/2013 17:09:33 [INFO] onion_pending_add(): Circuit create request is
 too old; canceling due to overload.
 9/2/2013 17:09:33 [INFO] onion_pending_add(): New create (tap). Queues now
 ntor=0 and tap=323.
 9/2/2013 17:09:33 [INFO] channel_register(): Channel 0xa9551388 (global ID
 321112) in state opening (1) registered with no identity digest
 9/2/2013 17:09:33 [INFO] command_process_created_cell(): (circID 39642)
 unknown circ (probably got a destroy earlier). Dropping.
 9/2/2013 17:09:33 [INFO] onion_pending_add(): New create (tap). Queues now
 ntor=0 and tap=322.
 9/2/2013 17:09:33 [INFO] onion_pending_add(): New create (tap). Queues now
 ntor=0 and tap=321.
 9/2/2013 17:09:33 [INFO] channel_tls_process_versions_cell(): Negotiated
 version 3 with [scrubbed]:15944; Sending cells: VERSIONS CERTS
 AUTH_CHALLENGE NETINFO
 9/2/2013 17:09:33 [INFO] connection_edge_process_relay_cell(): end cell
 (misc error) dropped, unknown stream.
 9/2/2013 17:09:33 [INFO] onion_pending_add(): New create (tap). Queues now
 ntor=0 and tap=320.
 9/2/2013 17:09:33 [INFO] onion_pending_add(): New create (tap). Queues now
 ntor=0 and tap=319.
 9/2/2013 17:09:33 [INFO] onion_pending_add(): New create (tap). Queues now
 ntor=0 and tap=318.
 }}}


 More info logs attached.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9574#comment:15>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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