[tor-bugs] #12020 [Tor]: Bootstrap gets stuck at 20% when connecting through a bridge.

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#12020: Bootstrap gets stuck at 20% when connecting through a bridge.
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 Reporter:  yawning  |          Owner:
     Type:  defect   |         Status:  new
 Priority:  normal   |      Milestone:
Component:  Tor      |        Version:  Tor: 0.2.5.4-alpha
 Keywords:           |  Actual Points:
Parent ID:           |         Points:
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 I believe this is different from all the other instances of this bug
 (#11965 and friends), because the client never recovers (I am using a
 pluggable transport that is experimental, but the symptoms don't point at
 my code at first glance).

 Client debug log:
 {{{
 May 15 19:36:24.000 [debug] connection_dir_client_reached_eof(): Received
 response from directory server '127.0.0.1:52810': 404 "Not found"
 (purpose: 6)
 May 15 19:36:24.000 [info] connection_dir_client_reached_eof(): Received
 server info (size 0) from server '127.0.0.1:52810'
 May 15 19:36:24.000 [info] connection_dir_client_reached_eof(): Received
 http status code 404 ("Not found") from server '127.0.0.1:52810' while
 fetching "/tor/server/authority.z". I'll try again soon.
 May 15 19:36:24.000 [debug] conn_close_if_marked(): Cleaning up connection
 (fd -1).
 May 15 19:36:24.000 [debug] connection_remove(): removing socket -1 (type
 Directory), n_conns now 3
 }}}

 The bridge is fully bootstrapped at this point according to the logs.
 Bridge functionality should be fully working once the bridge bootstraps to
 100% right?  This does seem to happen most after I restart both the client
 and bridge to pick up a new build of the pt binary...

 The only notable config option besides the PT is "PublishServerDescriptor
 0" (A cursory search for authority.z brings up #9366).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12020>
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