同步nova数据db sync时 Warning:

admin

su -s /bin/sh -c "nova-manage db sync" nova
1 f+ B% K' c4 @6 c/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py:332: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported
  exception.NotSupportedWarning
! h: C5 ]# l8 Y: w* {4 @; s# A/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.')
( {3 [/ h7 S! n5 s# p5 b  result = self._query(query)
; Q) X# D! Y: |3 ^& Y* i* |9 C/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.')
  result = self._query(query)
; H, t7 m8 {9 A4 v