On 2014-02-28 20:26, jackychen wrote: > hi, > I have commit a patch to sync notifier module under horizon with oslo-incubator, I met the gate-horizon-python error, all the errors are aimed at DatabseError. > Code Review Link: https://review.openstack.org/#/c/76439/ [1] > > The specific error: django.db.utils.DatabaseError: DatabaseWrapper objects created in a thread can only be used in that same thread. The object with alias 'default' was created in thread id 140664492599040 and this is thread id 56616752. > > So I have google it and find that there are two ways to fix this > > 1. https://code.djangoproject.com/ticket/17998 [2] > import eventlet > eventlet.monkey_patch() > > 2.https://bitbucket.org/akoha/django-digest/issue/10/conflict-with-global-databasewrapper > replace > cursor = self.db.connection.cursor() > with > cursor = db.connections[DEFAULT_DB_ALIAS].cursor() > everywhere it appears in storage.py, and add to the imports: > from django import db from django.db.utils import DEFAULT_DB_ALIAS > > Anyway, all these two solution are all not can be handled in my code commit, > So do you have any point of view to make this work? > Thanks for all your help. I believe that in other projects we monkeypatch eventlet, but I don't know for sure if that's the appropriate fix here. Adding oslo and db tags so those people will see this too. -Ben Links: ------ [1] https://review.openstack.org/#/c/76439/ [2] https://code.djangoproject.com/ticket/17998 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140303/b3e72828/attachment.html>