2011-10-24 11:11:21,848 DEBUG nova.utils [-] backend <module 'nova.db.sqlalchemy.api' from '/usr/lib/python2.7/dist-packages/nova/db/sqlalchemy/api.pyc'> from (pid=3416) __get_backend /usr/lib/python2.7/dist-packages/nova/utils.py:450
2011-10-24 11:11:21,851 INFO nova.db.sqlalchemy [-] Using mysql/eventlet db_pool.





2011-10-24 11:11:26,860 CRITICAL nova [-]
(nova): TRACE: Traceback (most recent call last):
(nova): TRACE:   File "/usr/bin/nova-manage", line 2141, in <module>
(nova): TRACE:     main()
(nova): TRACE:   File "/usr/bin/nova-manage", line 2129, in main
(nova): TRACE:     fn(*fn_args, **fn_kwargs)
(nova): TRACE:   File "/usr/bin/nova-manage", line 1126, in list
(nova): TRACE:     services = db.service_get_all(ctxt)
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/db/api.py", line 94, in service_get_all
(nova): TRACE:     return IMPL.service_get_all(context, disabled)
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/db/sqlalchemy/api.py", line 101, in wrapper
(nova): TRACE:     return f(*args, **kwargs)
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/db/sqlalchemy/api.py", line 186, in service_get_all
(nova): TRACE:     session = get_session()
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/db/sqlalchemy/session.py", line 53, in get_session
(nova): TRACE:     _ENGINE = get_engine()
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/nova/db/sqlalchemy/session.py", line 87, in get_engine
(nova): TRACE:     creator = eventlet.db_pool.ConnectionPool(MySQLdb, **pool_args)
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/eventlet/db_pool.py", line 50, in __init__
(nova): TRACE:     order_as_stack=True)
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/eventlet/pools.py", line 108, in __init__
(nova): TRACE:     self.free_items.append(self.create())
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/eventlet/db_pool.py", line 246, in create
(nova): TRACE:     **self._kwargs)
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/eventlet/db_pool.py", line 253, in connect
(nova): TRACE:     conn = tpool.execute(db_module.connect, *args, **kw)
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/eventlet/tpool.py", line 119, in execute
(nova): TRACE:     rv = e.wait()
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait
(nova): TRACE:     return hubs.get_hub().switch()
(nova): TRACE:   File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 177, in switch
(nova): TRACE:     return self.greenlet.switch()
(nova): TRACE: ConnectTimeout
(nova): TRACE: