[Buildbot-commits] [Buildbot] #2055: buildmaster spins when build starts

[Buildbot]

#2055: buildmaster spins when build starts
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Reporter:  mmorse       |       Owner:
    Type:  defect       |      Status:  new
Priority:  major        |   Milestone:  0.8.5
 Version:  0.8.4p2      |  Resolution:
Keywords:  performance  |
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Comment (by mmorse):

 More information:
 Looks like the clue I reported above (commenting out one or more builders)
 is a red herring. I've found a reliable workaround for the issue, but it
 involves how twistd is started.

 If I start the build master with '      twistd --nodaemon --no_save -y
 buildbot.tac', I don't see the problem. If I omit the '--nodaemon', I see
 the problem (python starts to spin) as soon as I try to access the
 waterfall.

 The machine has both twisted versions 11.0.0 and 8.2.0, and the problem
 occurs with either version. I also see the problem with python 2.6 and
 2.7. I'm not sure how long this issue has been present, since I normally
 start and stop the build masters by loading/unloading the launchd plist,
 which specifies --nodaemon. I began seeing this when I set up a new
 buildmaster and used 'make start', which doesn't include the --nodaemon
 switch.

 So, I have a reliable workaround, but I'm not sure where the problem lies
 --twistd, python, Mac OS X.

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Ticket URL: <http://trac.buildbot.net/ticket/2055#comment:6>
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