[Buildbot] #3454: Tests failing with newer Twisteds in Docker configuration

[Buildbot trac]

#3454: Tests failing with newer Twisteds in Docker configuration
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Reporter:  dustin  |       Owner:  dustin
    Type:  defect  |      Status:  new
Priority:  minor   |   Milestone:  0.9.+
 Version:  master  |  Resolution:
Keywords:          |
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Comment (by dustin):

 So it looks like one of the problems is that the twistd process is not
 acting like `init` and reaping re-parented children.  Which wouldn't be so
 bad if that twistd process didn't hang around forever.

 In trying to investigate, a few runs of 'docker ps' and 'docker exec'
 failed in odd ways, and blammo, the whole container is gone.

 So either this was a fluke that "poisoned" the container, or the version
 of Docker on this VM is just nonfunctional (but it's 1.9.1 which isn't so
 old).  I'll restart it now.

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Ticket URL: <http://trac.buildbot.net/ticket/3454#comment:6>
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