Creating volume from snapshot failed

Creating volume from snapschot failed with this scheduler error:

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$ euca-create-volume -z .... --snapshot snap-00000003
2012-06-01 15:45:06 DEBUG nova.rpc.amqp [-] received {u'_context_roles': [u'admin'], u'_context_request_id': u'....', u'_context_read_deleted': u'no', u'args': {u'topic': u'volume', u'snapshot_id': 3, u'volume_id': 224}, u'_context_auth_token': '<SANITIZED>', u'_context_is_admin': True, u'_context_project_id': u'....', u'_context_timestamp': u'2012-06-01T13:45:06.242900', u'_context_user_id': u'...', u'method': u'create_volume', u'_context_remote_address': u'......'} from (pid=4784) _safe_log /uasr/lib/python2.6/site-packages/nova/rpc/common.py:160
2012-06-01 15:45:06 DEBUG nova.rpc.amqp [... ... ...] unpacked context: {'user_id': u'....', 'roles': [u'admin'], 'timestamp': '2012-06-01T13:45:06.242900', 'auth_token': '<SANITIZED>', 'remote_address': u'...', 'is_admin': True, 'request_id': u'...', 'project_id': u'...', 'read_deleted': u'no'} from (pid=4784) _safe_log /usr/lib/python2.6/site-packages/nova/rpc/common.py:160
2012-06-01 15:45:06 WARNING nova.scheduler.manager [... ... ...] Failed to schedule_create_volume: expected string or Unicode object, long found
2012-06-01 15:45:06 ERROR nova.rpc.amqp [... ... ...] Exception during message handling
2012-06-01 15:45:06 TRACE nova.rpc.amqp Traceback (most recent call last):
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib/python2.6/site-packages/nova/rpc/amqp.py", line 253, in _process_data
2012-06-01 15:45:06 TRACE nova.rpc.amqp rval = node_func(context=ctxt, **node_args)
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib/python2.6/site-packages/nova/scheduler/manager.py", line 97, in _schedule
2012-06-01 15:45:06 TRACE nova.rpc.amqp context, ex, *args, **kwargs)
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib64/python2.6/contextlib.py", line 23, in __exit__
2012-06-01 15:45:06 TRACE nova.rpc.amqp self.gen.next()
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib/python2.6/site-packages/nova/scheduler/manager.py", line 92, in _schedule
2012-06-01 15:45:06 TRACE nova.rpc.amqp return driver_method(*args, **kwargs)
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib/python2.6/site-packages/nova/scheduler/simple.py", line 116, in schedule_create_volume
2012-06-01 15:45:06 TRACE nova.rpc.amqp volume_ref = db.volume_get(context, volume_id)
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib/python2.6/site-packages/nova/db/api.py", line 948, in volume_get
2012-06-01 15:45:06 TRACE nova.rpc.amqp return IMPL.volume_get(context, volume_id)
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib/python2.6/site-packages/nova/db/sqlalchemy/api.py", line 120, in wrapper
2012-06-01 15:45:06 TRACE nova.rpc.amqp return f(*args, **kwargs)
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib/python2.6/site-packages/nova/db/sqlalchemy/api.py", line 2399, in volume_get
2012-06-01 15:45:06 TRACE nova.rpc.amqp filter_by(id=volume_id).\
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.3-py2.6-linux-x86_64.egg/sqlalchemy/orm/query.py", line 1963, in first
2012-06-01 15:45:06 TRACE nova.rpc.amqp ret = list(self[0:1])
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.3-py2.6-linux-x86_64.egg/sqlalchemy/orm/query.py", line 1857, in __getitem__
2012-06-01 15:45:06 TRACE nova.rpc.amqp return list(res)
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.3-py2.6-linux-x86_64.egg/sqlalchemy/orm/query.py", line 2153, in instances
2012-06-01 15:45:06 TRACE nova.rpc.amqp rows = [process[0](row, None) for row in fetch]
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.3-py2.6-linux-x86_64.egg/sqlalchemy/orm/mapper.py", line 2647, in _instance
2012-06-01 15:45:06 TRACE nova.rpc.amqp populate_state(state, dict_, row, isnew, only_load_props)
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.3-py2.6-linux-x86_64.egg/sqlalchemy/orm/mapper.py", line 2501, in populate_state
2012-06-01 15:45:06 TRACE nova.rpc.amqp populator(state, dict_, row)
2012-06-01 15:45:06 TRACE nova.rpc.amqp File "/usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.3-py2.6-linux-x86_64.egg/sqlalchemy/orm/strategies.py", line 150, in new_execute
2012-06-01 15:45:06 TRACE nova.rpc.amqp dict_[key] = row[col]
2012-06-01 15:45:06 TRACE nova.rpc.amqp TypeError: expected string or Unicode object, long found
2012-06-01 15:45:06 TRACE nova.rpc.amqp
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After this volume list is inaccesible:
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$ euca-describe-volumes
UnknownError: An unknown error has occurred. Please try your request again.
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Until DB is not cleared manualy !:
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$ mysql nova -e "select id, status, availability_zone, attach_status from volumes where snapshot_id is not NULL;"
+-----+----------+-------------------+---------------+
| id | status | availability_zone | attach_status |
+-----+----------+-------------------+---------------+
| 225 | creating | ................... | detached |
+-----+----------+-------------------+---------------+
$ mysql nova -e "delete from volumes where id='225';"
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The "volume_scheduler_driver" is "nova.scheduler.simple.SimpleScheduler".