[Buildbot] #2895: Builds take a long time to get started on latent buildslaves

[Buildbot trac]

#2895: Builds take a long time to get started on latent buildslaves
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Reporter:  agateau      |       Owner:
    Type:  enhancement  |      Status:  new
Priority:  major        |   Milestone:  undecided
 Version:  0.8.6p1      |  Resolution:
Keywords:  ec2          |
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Comment (by agateau):

 > How do you distinguish acquiring from releasing the locks?

 I added a log call at release time (branch "buildbot-0.8.6", in
 botmaster.py, line 411), and noticed this was were the code was spending
 its time during the 4 minutes gap.

 > And, there can be pending builds at startup -- perhaps retries of builds
 in progress on shutdown, or just builds that were pending at shutdown.

 Fair enough, my fix is wrong then.

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Ticket URL: <http://trac.buildbot.net/ticket/2895#comment:7>
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