[tor-bugs] #28731 [Core Tor/Tor]: log bootstrap tag name for easier troubleshooting

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#28731: log bootstrap tag name for easier troubleshooting
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 Reporter:  catalyst                             |          Owner:
                                                 |  catalyst
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.5.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  s8-bootstrap, 033-backport-maybe,    |  Actual Points:
  034-backport-maybe, 035-backport-maybe         |
Parent ID:  #28018                               |         Points:  0.1
 Reviewer:                                       |        Sponsor:
                                                 |  Sponsor8-can
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Comment (by atagar):

 catalyst and I have been chatting on irc. Stem's launch_tor() method
 [https://gitweb.torproject.org/stem.git/tree/stem/process.py#n141 parses
 bootstrap messages] to determine how far along with the launch process we
 are. From a cursory glance at other potential users...

 * [https://gitweb.torproject.org/tor-launcher.git/tree/README-BOOTSTRAP
 launch-tor uses the control port]

 * txtorcon mentions
 [https://github.com/meejah/txtorcon/blob/master/txtorcon/controller.py#L1095
 checking for a bootstrap message] but I didn't spot anything that seemed
 to care about the format.

 * Chutney simply sleeps. I didn't spot any bootstrap handling.

 Is it a problem if Stem's launch_tor method breaks? Honestly I don't know.
 Nyx and DocTor don't use it so my codebases won't mind, but I wouldn't be
 surprised if
 [https://stem.torproject.org/tutorials/double_double_toil_and_trouble.html
 others do].

 Stem's **tor-prompt** command will break but that's mostly used by us so
 not the end of the would.

 Honestly this feels like a lateral move to me so I'd lean against, but
 again I don't have much of a dog in this. Happy to defer to the network
 team.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28731#comment:4>
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