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I have had problems using nova-manage db sync when using sqlite and the packaged version of sqlalchemy. If you are trying to do this, you probably need to do a sudo pip install -U sqlalchemy

Vish

On Aug 28, 2012, at 9:53 AM, Afef MDHAFFAR <afef.mdhaffar at gmail.com> wrote:

> Dear Openstack users,
> 
> I am trying to install openstack on an ubuntu server 12.04, with Xen as a virtualization technology.
> I unfortunately got a problem while trying to install the nova service. Actually, the "nova-manage db sync" fails and returns the following warnings:
> -------------------------------
> 2012-08-28 18:47:24 DEBUG nova.utils [-] backend <module 'nova.db.sqlalchemy.migration' from '/usr/lib/python2.7/dist-packages/nova/db/sqlalchemy/migration.pyc'> from (pid=3101) __get_backend /usr/lib/python2.7/dist-packages/nova/utils.py:658
> 2012-08-28 18:47:24 WARNING nova.utils [-] /usr/lib/python2.7/dist-packages/sqlalchemy/pool.py:639: SADeprecationWarning: The 'listeners' argument to Pool (and create_engine()) is deprecated.  Use event.listen().
>   Pool.__init__(self, creator, **kw)
> 
> 2012-08-28 18:47:24 WARNING nova.utils [-] /usr/lib/python2.7/dist-packages/sqlalchemy/pool.py:145: SADeprecationWarning: Pool.add_listener is deprecated.  Use event.listen()
>   self.add_listener(l)
> ----------------------------
> 
> Would you please help me to fix this problem?
> 
> Thank you
> 
> Best regards,
> Afef
> 
> 
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