[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
------------------------+------------------------
Reporter:  agateau      |       Owner:
    Type:  enhancement  |      Status:  new
Priority:  major        |   Milestone:  undecided
 Version:  0.8.6p1      |  Resolution:
Keywords:  ec2          |
------------------------+------------------------

Comment (by agateau):

 Sorry for the late reply. I just installed 0.8.9 and I have the same
 issue. Here are relevant excerpts of twistd.log:

 Without the patch:

 {{{
 2014-09-15 13:40:05+0000 [-] added buildset 1 to database
 2014-09-15 13:42:02+0000 [-] starting build <Build appengine-go-master>
 using slave <LatentSlaveBuilder builder='appengine-go-master'
 slave='buildslave_008'>
 2014-09-15 13:42:02+0000 [-] acquireLocks(slave <EC2LatentBuildSlave
 'buildslave_008'>, locks [])
 2014-09-15 13:42:02+0000 [-] substantiating slave <LatentSlaveBuilder
 builder='appengine-go-master' slave='buildslave_008'>
 }}}

 With the patch:

 {{{
 2014-09-15 13:49:35+0000 [-] added buildset 2 to database
 2014-09-15 13:49:35+0000 [-] starting build <Build appengine-go-master>
 using slave <LatentSlaveBuilder builder='appengine-go-master'
 slave='buildslave_008'>
 2014-09-15 13:49:35+0000 [-] acquireLocks(slave <EC2LatentBuildSlave
 'buildslave_008'>, locks [])
 2014-09-15 13:49:35+0000 [-] substantiating slave <LatentSlaveBuilder
 builder='appengine-go-master' slave='buildslave_008'>
 }}}

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Ticket URL: <http://trac.buildbot.net/ticket/2895#comment:3>
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