[Buildbot] #3048: ConnectionError when the Docker host is not available

[Buildbot trac]

#3048: ConnectionError when the Docker host is not available
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Reporter:  Ben                    |       Owner:
    Type:  defect                 |      Status:  new
Priority:  major                  |   Milestone:  0.9.0
 Version:  master                 |  Resolution:
Keywords:  docker, slave, latent  |
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Changes (by dustin):

 * milestone:  undecided => 0.9.0


Comment:

 It looks like we're suffering from some ill-defined boundaries here.  How
 can we encapsulate things with some fail-safe mechanisms to ensure that
 all exceptions are caught and that substantiation either completes or is
 rolled back (even in the case of master shutdown)?

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Ticket URL: <http://trac.buildbot.net/ticket/3048#comment:8>
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