[Buildbot-devel] Possible problems with trunk of buildbot master

[Dan Kegel]

This is kind of funky.

I upgraded from 0.8.7 to latest, did the database upgrade, and am
now seeing warnings like this:

2014-04-14 11:24:56-0700 [-] Unhandled Error
        Traceback (most recent call last):
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/application/service.py",
line 290, in stopService
            l.append(defer.maybeDeferred(service.stopService))
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/defer.py",
line 137, in maybeDeferred
            result = f(*args, **kw)
          File "/home/buildbot/master-state/sandbox/buildbot-git/master/buildbot/status/master.py",
line 115, in stopService
            return service.MultiService.stopService(self)
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/application/service.py",
line 290, in stopService
            l.append(defer.maybeDeferred(service.stopService))
        --- <exception caught here> ---
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/defer.py",
line 137, in maybeDeferred
            result = f(*args, **kw)
          File "/home/buildbot/master-state/sandbox/buildbot-git/master/buildbot/status/mail.py",
line 469, in stopService
            self.summaryUnsubscribe()
          File "/home/buildbot/master-state/sandbox/buildbot-git/master/buildbot/status/buildset.py",
line 81, in summaryUnsubscribe
            if self._buildSetSubscription is not None:
        exceptions.AttributeError: MailNotifier instance has no
attribute '_buildSetSubscription'

and

2014-04-14 11:44:25-0700 [-] while polling for changes
        Traceback (most recent call last):
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/defer.py",
line 421, in errback
            self._startRunCallbacks(fail)
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/defer.py",
line 488, in _startRunCallbacks
            self._runCallbacks()
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/defer.py",
line 575, in _runCallbacks
            current.result = callback(current.result, *args, **kw)
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/defer.py",
line 1126, in gotResult
            _inlineCallbacks(r, g, deferred)
        --- <exception caught here> ---
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/defer.py",
line 1068, in _inlineCallbacks
            result = result.throwExceptionIntoGenerator(g)
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/python/failure.py",
line 389, in throwExceptionIntoGenerator
            return g.throw(self.type, self.value, self.tb)
        exceptions.TypeError: exceptions must be classes, or instances, not type

2014-04-14 11:44:25-0700 [-] trying to poll branch master of
git.oblong.com:/ob/git/repo/ob-deps/gst-plugins-ugly/gst-plugins-ugly-0.10.18.git
        Traceback (most recent call last):
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/_baseprocess.py",
line 60, in maybeCallProcessEnded
            proto.processEnded(Failure(reason))
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/utils.py",
line 159, in processEnded
            self.deferred.errback((out, err, e.signal))
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/defer.py",
line 421, in errback
            self._startRunCallbacks(fail)
          File "/home/buildbot/master-state/sandbox/local/lib/python2.7/site-packages/twisted/internet/defer.py",
line 488, in _startRunCallbacks
            self._runCallbacks()
        --- <exception caught here> ---
          File "/home/buildbot/master-state/sandbox/buildbot-git/master/buildbot/changes/gitpoller.py",
line 168, in poll
            'rev-parse', [self._trackerBranch(branch)], path=self.workdir)
        exceptions.GeneratorExit:

2014-04-14 11:44:25-0700 [-] Exception RuntimeError: 'generator
ignored GeneratorExit' in <generator object poll at 0x52ee0f0> ignored

Restarting seemed to make it happier.

It's only been up a few minutes, so I don't know how real a problem this is yet.
- Dan