[Buildbot-commits] [Buildbot] #2396: RFC: Allow for alternate location of twistd.pid?

[Buildbot]

#2396: RFC: Allow for alternate location of twistd.pid?
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Reporter:  clepple      |      Owner:
    Type:  enhancement  |     Status:  new
Priority:  minor        |  Milestone:  undecided
 Version:  0.8.6p1      |   Keywords:  twisted, stale PID
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 This is idea is a bit rough around the edges - feel free to suggest
 alternate approaches.

 During some recent power outages, I had a number of buildslaves shut down
 in an unclean fashion, and the twistd.pid files were referring to
 processes from the last boot. I don't have the exact error message, but
 the subsequent buildbot/buildslave start command did not complete since it
 could not check the old PID.

 I'm wondering if it would be better to allow storing the PID files
 somewhere else like /var/run that would get cleared at reboot time. This
 might get complicated in situations where the twistd process might not
 have write permission. Also, multiple twistd processes would need a way to
 distinguish which file is theirs (subdirectories?)

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Ticket URL: <http://trac.buildbot.net/ticket/2396>
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