641791 - buildbot-master1 throwing exceptions.AttributeError: 'NoneType' object has no attribute 'db' exception recently

Status: RESOLVED WONTFIX

(Release Engineering :: General, defect, P5)

Description

[[e-mail] (:bhearsum)]

Seems like a Scheduler lost its parent, possibly as part of a reconfig?

2011-03-14 15:40:18-0700 [-] Unhandled Error
	Traceback (most recent call last):
	  File "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/twisted/internet/base.py", line 1174, in mainLoop
	    self.runUntilCurrent()
	  File "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/twisted/internet/base.py", line 796, in runUntilCurrent
	    call.func(*call.args, **call.kw)
	  File "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/buildbot-0.8.2_hg_cf597f8d9b94_default-py2.5.egg/buildbot/util/eventual.py", line 31, in _turn
	    cb(*args, **kwargs)
	  File "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/buildbot-0.8.2_hg_cf597f8d9b94_default-py2.5.egg/buildbot/util/loop.py", line 167, in _loop_next
	    d = defer.maybeDeferred(p)
	--- <exception caught here> ---
	  File "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/twisted/internet/defer.py", line 125, in maybeDeferred
	    result = f(*args, **kw)
	  File "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/buildbot-0.8.2_hg_cf597f8d9b94_default-py2.5.egg/buildbot/schedulers/triggerable.py", line 89, in run
	    d = self.parent.db.runInteraction(self._run)
	exceptions.AttributeError: 'NoneType' object has no attribute 'db'

Comment 1

[Chris AtLee [:catlee]]

(In reply to comment #0)
> Seems like a Scheduler lost its parent, possibly as part of a reconfig?
> 
> 2011-03-14 15:40:18-0700 [-] Unhandled Error
>     Traceback (most recent call last):
>       File
> "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/twisted/internet/base.py",
> line 1174, in mainLoop
>         self.runUntilCurrent()
>       File
> "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/twisted/internet/base.py",
> line 796, in runUntilCurrent
>         call.func(*call.args, **call.kw)
>       File
> "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/buildbot-0.8.2_hg_cf597f8d9b94_default-py2.5.egg/buildbot/util/eventual.py",
> line 31, in _turn
>         cb(*args, **kwargs)
>       File
> "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/buildbot-0.8.2_hg_cf597f8d9b94_default-py2.5.egg/buildbot/util/loop.py",
> line 167, in _loop_next
>         d = defer.maybeDeferred(p)
>     --- <exception caught here> ---
>       File
> "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/twisted/internet/defer.py",
> line 125, in maybeDeferred
>         result = f(*args, **kw)
>       File
> "/builds/buildbot/builder-master/sandbox/lib/python2.5/site-packages/buildbot-0.8.2_hg_cf597f8d9b94_default-py2.5.egg/buildbot/schedulers/triggerable.py",
> line 89, in run
>         d = self.parent.db.runInteraction(self._run)
>     exceptions.AttributeError: 'NoneType' object has no attribute 'db'


man, I could have sworn I fixed this problem upstream...

Comment 2

[[e-mail] (:bhearsum)]

Upstream ticket: http://trac.buildbot.net/ticket/899

Comment 3

[Dustin J. Mitchell [:dustin] (he/him)]

This happens when a reconfig occurs in the middle of the builder loop.  As I said in #899, I'm not sure there's much to be done about it, aside from rewriting/removing reconfig support.

Comment 4

[Aki Sasaki (not active)]

Per comment 3, not much to be done, for a bug referring to a retired buildbot master.