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[Afef MDHAFFAR <afef.mdhaffar@xxxxxxxxx>]

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