cell_V2数据库同步nova['use_tpool'] not supported

admin

su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
3 Y2 [5 A( s) i  |' j: o7 C/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:332: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
  exception.NotSupportedWarning

admin

[root@controller1 ~]# su -s /bin/sh -c "nova-manage db sync" nova
/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:332: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
5 o7 \) k3 l$ A  exception.NotSupportedWarning
( h$ |; x: f( h/usr/lib/python2.7/site-packages/pymysql/cursors.py:166: Warning: (1831, u'Duplicate index `block_device_mapping_instance_uuid_virtual_name_device_name_idx`. This is deprecated and will be disallowed in a future release.')
' k1 |9 {! m: `% t' F8 T; J" |/ }  result = self._query(query)
2 z# W; h% u! `/usr/lib/python2.7/site-packages/pymysql/cursors.py:166: Warning: (1831, u'Duplicate index `uniq_instances0uuid`. This is deprecated and will be disallowed in a future release.')
# ]6 x) m+ a4 u  result = self._query(query)
2 `& ~& }2 A; \4 ?! E& m: a[root@controller1 ~]#  nova-manage cell_v2 list_cells
0 g4 p" y2 Y) w$ d# z/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:332: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
  exception.NotSupportedWarning
+-------+--------------------------------------+------------------------------------+-------------------------------------------------+
|  Name |                 UUID                 |           Transport URL            |               Database Connection               |
0 E! h3 I2 F2 p6 K$ c+-------+--------------------------------------+------------------------------------+-------------------------------------------------+
" y0 u1 k% O( |8 t$ g8 Y- S| cell0 | 00000000-0000-0000-0000-000000000000 |               none:/               | mysql+pymysql://nova:****@controller/nova_cell0 |
' E! T: w, n6 ]6 j! H2 H- g| cell1 | 57f83da3-936c-4066-a951-f620a794250c | rabbit://openstack:****@controller |    mysql+pymysql://nova:****@controller/nova    |
) [; _6 G' `6 L: ~2 ~6 Y+-------+--------------------------------------+------------------------------------+-------------------------------------------------+