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Ticket #2919 (closed: duplicate)

Opened 2 years ago

Last modified 2 years ago

ReferenceError? at / weakly-referenced object no longer exists

Reported by: dcramer@gmail.com Assigned to: adrian
Milestone: Component: Database layer (models, ORM)
Version: Keywords:
Cc: Triage Stage: Unreviewed
Has patch: 0 Needs documentation: 0
Needs tests: 0 Patch needs improvement: 0

Description

We just moved Django from a BSD server to a Fedora Core linux install. This error randomly pops up and you can refresh to get rid of it.

I'm assuming this is a framework issue and not something we're doing as it happens throughout the site (not on any specific view/app)

Traceback (most recent call last): File "/usr/lib/python2.4/site-packages/django/core/handlers/base.py" in get_response

  1. response = callback(request, *callback_args, **callback_kwargs)

File "/home/www/cursedjango/cursesite/../cursesite/articles/views.py" in index

  1. return render_to_response('index.html', context_instance=context)

File "/usr/lib/python2.4/site-packages/django/shortcuts/init.py" in render_to_response

  1. return HttpResponse(loader.render_to_string(*args, **kwargs))

File "/usr/lib/python2.4/site-packages/django/template/loader.py" in render_to_string

  1. return t.render(context_instance)

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render

  1. return self.nodelist.render(context)

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render

  1. bits.append(self.render_node(node, context))

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render_node

  1. return(node.render(context))

File "/usr/lib/python2.4/site-packages/django/template/loader_tags.py" in render

  1. return compiled_parent.render(context)

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render

  1. return self.nodelist.render(context)

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render

  1. bits.append(self.render_node(node, context))

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render_node

  1. return(node.render(context))

File "/usr/lib/python2.4/site-packages/django/template/loader_tags.py" in render

  1. result = self.nodelist.render(context)

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render

  1. bits.append(self.render_node(node, context))

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render_node

  1. return(node.render(context))

File "/usr/lib/python2.4/site-packages/django/template/defaulttags.py" in render

  1. return self.nodelist_true.render(context)

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render

  1. bits.append(self.render_node(node, context))

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render_node

  1. return(node.render(context))

File "/usr/lib/python2.4/site-packages/django/template/defaulttags.py" in render

  1. nodelist.append(node.render(context))

File "/usr/lib/python2.4/site-packages/django/template/init.py" in render

  1. dict = func(*args)

File "/home/www/cursedjango/cursesite/../cursesite/ratings/templatetags/ratings.py" in show_rating

  1. content_type = ContentType?.objects.get(app_labelexact=appargs[0], modelexact=appargs[1])

File "/usr/lib/python2.4/site-packages/django/db/models/manager.py" in get

  1. return self.get_query_set().get(*args, **kwargs)

File "/usr/lib/python2.4/site-packages/django/db/models/query.py" in get

  1. obj_list = list(clone)

File "/usr/lib/python2.4/site-packages/django/db/models/query.py" in iter

  1. return iter(self._get_data())

File "/usr/lib/python2.4/site-packages/django/db/models/query.py" in _get_data

  1. self._result_cache = list(self.iterator())

File "/usr/lib/python2.4/site-packages/django/db/models/query.py" in iterator

  1. cursor.execute("SELECT " + (self._distinct and "DISTINCT " or "") + ",".join(select) + sql, params)

File "/usr/lib/python2.4/site-packages/django/db/backends/util.py" in execute

  1. return self.cursor.execute(sql, params)

File "/usr/lib/python2.4/site-packages/django/db/backends/mysql/base.py" in execute

  1. return self.cursor.execute(sql, params)

File "/usr/lib/python2.4/site-packages/MySQLdb/cursors.py" in execute

  1. self.errorhandler(self, exc, value)

File "/usr/lib/python2.4/site-packages/MySQLdb/connections.py" in defaulterrorhandler

  1. raise errorclass, errorvalue

ReferenceError? at / weakly-referenced object no longer exists

Attachments

Change History

10/16/06 18:34:36 changed by mtredinnick

Which web server interface are you using: development server, mod_python or wsgi?

10/17/06 08:30:42 changed by anonymous

lighttpd w/ fastcgi

10/19/06 19:58:02 changed by anonymous

http://code.djangoproject.com/search?q=weakref&wiki=on&changeset=on&ticket=on

10/22/06 16:02:59 changed by dcramer@gmail.com

http://web.t-online.hu/oro18/error.html

Wish I could change this to critical, as something that prevents a user from viewing the site randomly (seems to be on session creation) has become a major issue.

01/22/07 02:38:18 changed by Simon G. <dev@simon.net.nz>

  • version deleted.
  • summary changed from DB Api Issues to ReferenceError? at / weakly-referenced object no longer exists.

Does this problem still exist? Can anyone provide more information?

01/22/07 08:06:34 changed by David Cramer <dcramer@gmail.com>

This was related to lighttpd and threaded mode.. I believe, our solution: use Apache with its enormous memory overhead.

01/24/07 10:03:23 changed by mir@noris.de

  • status changed from new to closed.
  • resolution set to duplicate.

duplicate of #3279 (but there with apache/fastcgi/threaded).

Add/Change #2919 (ReferenceError? at / weakly-referenced object no longer exists)




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