[tor-bugs] #30498 [Circumvention/Snowflake]: Proxy-go is receiving a lot of client timeouts

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#30498: Proxy-go is receiving a lot of client timeouts
-------------------------------------+---------------------------
 Reporter:  cohosh                   |          Owner:  (none)
     Type:  defect                   |         Status:  new
 Priority:  Medium                   |      Milestone:
Component:  Circumvention/Snowflake  |        Version:
 Severity:  Normal                   |     Resolution:
 Keywords:  snowflake                |  Actual Points:
Parent ID:                           |         Points:
 Reviewer:                           |        Sponsor:  Sponsor19
-------------------------------------+---------------------------

Comment (by arma):

 {{{
 2019/05/14 03:22:11 broker returns: 504
 INFO: configuration.go:256: Converting Config:
 &{[{[stun:stun.l.google.com:19302]  }] All Balanced }
 INFO: peerconnection.go:168: Created PeerConnection:  &{<nil> <nil> false
 <nil> <nil> <nil> <nil> <nil> <nil> <nil> <nil> <nil>
 {[{[stun:stun.l.google.com:19302]  }] 3 0 } 0x7f7444001270 3}
 0x7f7444001270
 INFO: peerconnection.go:436: fired OnSignalingStateChange:  3
 HaveRemoteOffer
 2019/05/14 03:22:13 sdp offer successfully received.
 2019/05/14 03:22:13 Generating answer...
 INFO: peerconnection.go:436: fired OnSignalingStateChange:  3 Stable
 INFO: peerconnection.go:504: fired OnIceConnectionStateChange:  3
 INFO: peerconnection.go:495: fired OnConnectionStateChange:  3
 INFO: peerconnection.go:513: fired OnIceGatheringStateChange: 3
 INFO: peerconnection.go:459: fired OnIceCandidate:  3 candidate:503462688
 1 udp 2122260223 192.168.1.187 58484 typ host generation 0 ufrag ajv5
 network-id 3 network-cost 50
 INFO: peerconnection.go:459: fired OnIceCandidate:  3 candidate:2672442772
 1 udp 1686052607 108.27.53.144 58484 typ srflx raddr 192.168.1.187 rport
 58484 generation 0 ufrag ajv5 network-id 3 network-cost 50
 INFO: peerconnection.go:459: fired OnIceCandidate:  3 candidate:1350682576
 1 tcp 1518280447 192.168.1.187 49181 typ host tcptype passive generation 0
 ufrag ajv5 network-id 3 network-cost 50
 INFO: peerconnection.go:513: fired OnIceGatheringStateChange: 3
 2019/05/14 03:22:24 broker returns: 504
 2019/05/14 03:22:33 Timed out waiting for client to open data channel.
 INFO: peerconnection.go:504: fired OnIceConnectionStateChange:  3
 INFO: peerconnection.go:436: fired OnSignalingStateChange:  3 Closed
 INFO: configuration.go:256: Converting Config:
 &{[{[stun:stun.l.google.com:19302]  }] All Balanced }
 INFO: peerconnection.go:168: Created PeerConnection:  &{<nil> <nil> false
 <nil> <nil> <nil> <nil> <nil> <nil> <nil> <nil> <nil>
 {[{[stun:stun.l.google.com:19302]  }] 3 0 } 0x7f7450001280 4}
 0x7f7450001280
 INFO: peerconnection.go:436: fired OnSignalingStateChange:  4
 HaveRemoteOffer
 2019/05/14 03:22:33 sdp offer successfully received.
 2019/05/14 03:22:33 Generating answer...
 INFO: peerconnection.go:436: fired OnSignalingStateChange:  4 Stable
 INFO: peerconnection.go:504: fired OnIceConnectionStateChange:  4
 INFO: peerconnection.go:495: fired OnConnectionStateChange:  4
 INFO: peerconnection.go:513: fired OnIceGatheringStateChange: 4
 INFO: peerconnection.go:459: fired OnIceCandidate:  4 candidate:503462688
 1 udp 2122260223 192.168.1.187 37235 typ host generation 0 ufrag GjON
 network-id 3 network-cost 50
 INFO: peerconnection.go:459: fired OnIceCandidate:  4 candidate:2672442772
 1 udp 1686052607 108.27.53.144 37235 typ srflx raddr 192.168.1.187 rport
 37235 generation 0 ufrag GjON network-id 3 network-cost 50
 INFO: peerconnection.go:459: fired OnIceCandidate:  4 candidate:1350682576
 1 tcp 1518280447 192.168.1.187 43431 typ host tcptype passive generation 0
 ufrag GjON network-id 3 network-cost 50
 INFO: peerconnection.go:513: fired OnIceGatheringStateChange: 4
 2019/05/14 03:22:44 broker returns: 504
 INFO: peerconnection.go:468: fired OnIceCandidateError:  4
 2019/05/14 03:22:53 Timed out waiting for client to open data channel.
 INFO: peerconnection.go:504: fired OnIceConnectionStateChange:  4
 INFO: peerconnection.go:436: fired OnSignalingStateChange:  4 Closed
 2019/05/14 03:22:54 broker returns: 504
 2019/05/14 03:23:04 broker returns: 504
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30498#comment:1>
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