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[tor-bugs] #1840 [Tor Client]: run_connection_housekeeping() closes circuits early
#1840: run_connection_housekeeping() closes circuits early
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Reporter: arma | Owner:
Type: defect | Status: new
Priority: normal | Milestone: Tor: 0.2.2.x-final
Component: Tor Client | Version:
Keywords: | Parent:
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Due perhaps to bug #1772, my circuitbuildtimeout is growing very big:
Aug 17 14:59:00.189 [notice] Based on 1000 circuit times, it looks like we
need to wait longer for circuits to finish. We will now assume a circuit
is too slow to use after waiting 255 seconds.
And once it's this big, run_connection_housekeeping() starts killing OR
connections that haven't finished handshaking yet:
Aug 17 15:06:03.012 [info] run_connection_housekeeping(): Expiring non-
used OR connection to fd 18 (38.229.70.33:9001) [idle 180].
Aug 17 15:06:03.012 [info] run_connection_housekeeping(): Expiring non-
used OR connection to fd 11 (85.25.130.135:443) [idle 180].
Aug 17 15:06:03.012 [debug] conn_close_if_marked(): Cleaning up connection
(fd 18).
Aug 17 15:06:03.012 [debug] circuit_n_conn_done(): or_conn to
FordModelA/38.229.70.33, status=0
Aug 17 15:06:03.012 [info] circuit_n_conn_done(): or_conn failed. Closing
circ.
Aug 17 15:06:03.012 [info] circuit_build_failed(): Our circuit died before
the first hop with no connection
Aug 17 15:06:03.013 [debug] circuit_increment_failure_count():
n_circuit_failures now 1.
Aug 17 15:06:03.013 [debug] connection_remove(): removing socket 18 (type
OR), n_conns now 20
Aug 17 15:06:03.013 [debug] _connection_free(): closing fd 18.
Aug 17 15:06:03.013 [debug] conn_close_if_marked(): Cleaning up connection
(fd 11).
Aug 17 15:06:03.013 [debug] connection_remove(): removing socket 11 (type
OR), n_conns now 19
Aug 17 15:06:03.013 [debug] _connection_free(): closing fd 11.
So the first issue is: why the heck is my network taking >180 seconds to
TLS handshake with this relay? Probably something about my network
stability, plus the results of bug #1772.
The second question is: why are we culling the OR connection when there's
a circuit that isn't connected yet but wants to be? That sounds like a
check we forgot to add (that didn't matter when the timeout was 15
minutes, but now matters when the timeout is 3 minutes).
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/1840>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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