[Buildbot] #3048: ConnectionError when the Docker host is not available

[Buildbot trac]

#3048: ConnectionError when the Docker host is not available
----------------------------------+------------------------
Reporter:  Ben                    |       Owner:
    Type:  defect                 |      Status:  new
Priority:  major                  |   Milestone:  undecided
 Version:  master                 |  Resolution:
Keywords:  docker, slave, latent  |
----------------------------------+------------------------

Comment (by Ben):

 Copying the (new) traceback here to prevent ambiguity:

 {{{
 2014-11-18 21:46:12+0100 [-] starting build <Build GH-1288> using slave
 <LatentSlaveBuilder builder=u'GH-1288' slave=u'docker'>
 2014-11-18 21:46:12+0100 [-] acquireLocks(slave <DockerLatentBuildSlave
 u'docker'>, locks [])
 2014-11-18 21:46:12+0100 [-] substantiating slave <LatentSlaveBuilder
 builder=u'GH-1288' slave=u'docker'>
 2014-11-18 21:46:12+0100 [-] Unable to connect to Docker: ('Connection
 aborted.', error(2, 'No such file or directory'))
 2014-11-18 21:46:12+0100 [-] Buildslave docker detached from GH-1288
 2014-11-18 21:46:12+0100 [-] while preparing slavebuilder:
         Traceback (most recent call last):
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/internet/defer.py", line 577, in _runCallbacks
             current.result = callback(current.result, *args, **kw)
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/internet/defer.py", line 1155, in gotResult
             _inlineCallbacks(r, g, deferred)
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/internet/defer.py", line 1097, in _inlineCallbacks
             result = result.throwExceptionIntoGenerator(g)
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/python/failure.py", line 389, in
 throwExceptionIntoGenerator
             return g.throw(self.type, self.value, self.tb)
         --- <exception caught here> ---
           File
 "/Users/benoit/Python/buildbot/master/buildbot/process/builder.py", line
 349, in _startBuildFor
             ready = yield slavebuilder.prepare(self.builder_status, build)
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/python/threadpool.py", line 196, in _worker
             result = context.call(ctx, function, *args, **kwargs)
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/python/context.py", line 118, in callWithContext
             return self.currentContext().callWithContext(ctx, func, *args,
 **kw)
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/python/context.py", line 81, in callWithContext
             return func(*args,**kw)
           File
 "/Users/benoit/Python/buildbot/master/buildbot/buildslave/docker.py", line
 88, in _thd_start_instance
             'Unable to connect to Docker'
         buildbot.interfaces.LatentBuildSlaveFailedToSubstantiate: Unable
 to connect to Docker

 2014-11-18 21:46:12+0100 [-] slave <Build GH-1288> can't build
 <LatentSlaveBuilder builder=u'GH-1288'> after all; re-queueing the request
 2014-11-18 21:46:12+0100 [-] releaseLocks(<DockerLatentBuildSlave
 u'docker'>): []
 2014-11-18 21:46:12+0100 [-] while substantiating
         Traceback (most recent call last):
           File
 "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py",
 line 783, in __bootstrap
             self.__bootstrap_inner()
           File
 "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py",
 line 810, in __bootstrap_inner
             self.run()
           File
 "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py",
 line 763, in run
             self.__target(*self.__args, **self.__kwargs)
         --- <exception caught here> ---
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/python/threadpool.py", line 196, in _worker
             result = context.call(ctx, function, *args, **kwargs)
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/python/context.py", line 118, in callWithContext
             return self.currentContext().callWithContext(ctx, func, *args,
 **kw)
           File "/Users/benoit/Python/buildbotEnv/lib/python2.7/site-
 packages/twisted/python/context.py", line 81, in callWithContext
             return func(*args,**kw)
           File
 "/Users/benoit/Python/buildbot/master/buildbot/buildslave/docker.py", line
 88, in _thd_start_instance
             'Unable to connect to Docker'
         buildbot.interfaces.LatentBuildSlaveFailedToSubstantiate: Unable
 to connect to Docker

 }}}

--
Ticket URL: <http://trac.buildbot.net/ticket/3048#comment:4>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation