[tor-bugs] #29426 [Obfuscation/Snowflake]: proxy-go instances receiving 504 errors from broker

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#29426: proxy-go instances receiving 504 errors from broker
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     Reporter:  cohosh                 |      Owner:  (none)
         Type:  defect                 |     Status:  new
     Priority:  High                   |  Milestone:
    Component:  Obfuscation/Snowflake  |    Version:
     Severity:  Normal                 |   Keywords:  snowflake
Actual Points:                         |  Parent ID:
       Points:                         |   Reviewer:
      Sponsor:  Sponsor19              |
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 Log output:
 2019/02/07 12:11:51 broker returns: 504
 INFO: peerconnection.go:468: fired OnIceCandidateError:  143
 2019/02/07 12:12:01 broker returns: 504

 The broker is reporting no available snowflakes despite the fact that the
 proxies are running. Not sure if this is due to the deadlock problem or if
 these 504 errors indicate a problem with the proxy-broker communication.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29426>
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