Thanks Tres, you are of course correct, I had two different problems that
behaved similarly. However, the static issue still remained when I got rid
of the concurrency problem. I will dig into that later and report more on
it, in the meantime I just ditched serving static files through bfg and have
them served by Apache.
thanks
iain
On Thu, Aug 19, 2010 at 5:16 AM, Tres Seaver <tsea...@palladion.com> wrote:
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>
> Iain Duncan wrote:
> > On Wed, Aug 18, 2010 at 4:28 PM, Chris Withers <ch...@simplistix.co.uk
> >wrote:
> >
> >> Iain Duncan wrote:
> >>
> >>> FWIW, I can sit there and hit reload, and get totally different
> responses
> >>> randomly, sometimes my bfg methods return what they are supposed to,
> and
> >>> others I get the 500s.
> >>> Could there be a connection with using resource directory overloads in
> the
> >>> zcml?
> >>>
> >> It would be good to see the exceptions that are logged on the server
> side
> >> that match those 500s...
> >>
> >> Chris
> >>
> >>
> > Here is the traceback from one of the times it screwed up. gah, I expect
> > this is not good for homestar runner, maybe something deeply wrong in my
> > model code?
> > The weird thing is now I just had no problem like 10 times in a row, and
> > other times the js app fails when it makes the same request (
> > /bookings/by_date/2010-08-18 ). But when I hit the same thing in the
> browser
> > or manually trigger the ajax code from the firebug console, it never
> fails.
> >
> > Any clues to the meaning of this traceback are most appreciated.
> >
> > 16:37:01,938 INFO [irmacs.views.bookings] BookingView.by_date() date:
> > 2009-12-18
> > ----------------------------------------
> > Exception happened during processing of request from ('127.0.0.1', 38238)
> > Traceback (most recent call last):
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/Paste-1.7.4-py2.6.egg/paste/httpserver.py",
> > line 1068, in process_request_in_thread
> > self.finish_request(request, client_address)
> > File "/usr/lib/python2.6/SocketServer.py", line 320, in finish_request
> > self.RequestHandlerClass(request, client_address, self)
> > File "/usr/lib/python2.6/SocketServer.py", line 615, in __init__
> > self.handle()
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/Paste-1.7.4-py2.6.egg/paste/httpserver.py",
> > line 442, in handle
> > BaseHTTPRequestHandler.handle(self)
> > File "/usr/lib/python2.6/BaseHTTPServer.py", line 329, in handle
> > self.handle_one_request()
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/Paste-1.7.4-py2.6.egg/paste/httpserver.py",
> > line 437, in handle_one_request
> > self.wsgi_execute()
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/Paste-1.7.4-py2.6.egg/paste/httpserver.py",
> > line 287, in wsgi_execute
> > self.wsgi_start_response)
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/repoze.who-1.0.18-py2.6.egg/repoze/who/middleware.py",
> > line 107, in __call__
> > app_iter = app(environ, wrapper.wrap_start_response)
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/repoze.bfg-1.2.1-py2.6.egg/repoze/bfg/router.py",
> > line 130, in __call__
> > response = view_callable(context, request)
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/repoze.bfg-1.2.1-py2.6.egg/repoze/bfg/configuration.py",
> > line 1665, in _bfg_class_view
> > response = getattr(inst, attr)()
> > File "/home/irmacs/irmacs_trunk/Irmacs/irmacs/views/bookings.py", line
> 47,
> > in by_date
> > bookings = self.model.list( Booking, {'date':isodate} )
> > File
> >
> "/home/irmacs/irmacs_trunk/framework_src/xornot.model/xornot/model/__init__.py",
> > line 208, in list
> > items = query.all()
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/SQLAlchemy-0.5.8-py2.6.egg/sqlalchemy/orm/query.py",
> > line 1267, in all
> > return list(self)
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/SQLAlchemy-0.5.8-py2.6.egg/sqlalchemy/orm/query.py",
> > line 1422, in instances
> > rows = [process[0](context, row) for row in fetch]
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/SQLAlchemy-0.5.8-py2.6.egg/sqlalchemy/orm/query.py",
> > line 2032, in main
> > return _instance(row, None)
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/SQLAlchemy-0.5.8-py2.6.egg/sqlalchemy/orm/mapper.py",
> > line 1751, in _instance
> > state._run_on_load(instance)
> > File
> >
> "/home/irmacs/irmacs_trunk/eggs/SQLAlchemy-0.5.8-py2.6.egg/sqlalchemy/orm/state.py",
> > line 119, in _run_on_load
> > self.manager.events.run('on_load', instance)
> > AttributeError: 'NoneType' object has no attribute 'run'
> > ----------------------------------------
>
> This traceback is clearly not from a request serving a static resource:
> you are seeing a bug (maybe a race condition due to use of globals?) in
> your application.
>
>
> Tres.
>
> - --
> ===================================================================
> Tres Seaver +1 540-429-0999 tsea...@palladion.com
> Palladion Software "Excellence by Design" http://palladion.com
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