An error has occurred:......CantStartEngineError: No sql_connection parameter is

admin

An error has occurred:
Traceback (most recent call last):
. @& p$ a1 p8 H' G2 h6 e  File "/usr/lib/python2.7/site-packages/nova/cmd/manage.py", line 2708, in main
    ret = fn(*fn_args, **fn_kwargs)
  File "/usr/lib/python2.7/site-packages/nova/cmd/manage.py", line 968, in sync
! e; \2 i/ Y; S, o    return migration.db_sync(version, database='api')
  File "/usr/lib/python2.7/site-packages/nova/db/migration.py", line 26, in db_sync
    return IMPL.db_sync(version=version, database=database, context=context)
  File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/migration.py", line 53, in db_sync
7 D7 N6 ^7 ]2 ?0 U    current_version = db_version(database, context=context)
  File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/migration.py", line 66, in db_version
    return versioning_api.db_version(get_engine(database, context=context),
  File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/migration.py", line 43, in get_engine
, d* d* J7 @4 s9 C: V. w" u/ T8 D    return db_session.get_api_engine()
  File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/api.py", line 152, in get_api_engine
( n! n3 A5 a$ \( \    return api_context_manager.writer.get_engine()
! @( o8 C  v4 a6 h' p9 ~$ e  File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 833, in get_engine
    return self._factory.get_writer_engine()
5 R$ C5 ?+ y8 y- p# o2 Z  File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 372, in get_writer_engine
7 d( T8 `6 x0 |    self._start()
$ z. }/ p$ v( s: F' o0 D  File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 510, in _start
2 N: x; k8 \6 {1 S1 ~6 J8 U    engine_args, maker_args)
  File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 532, in _setup_for_connection
1 c+ w1 F. t& ^& w/ _    "No sql_connection parameter is established")
CantStartEngineError: No sql_connection parameter is established
5 a  b# a; B8 n& e: ?$ R
; x! l6 X; `1 i5 c' r' \0 Y缺少parameter数据库



0 P5 b4 }. z- w" e  i4 O" W首先检查配置文件。nova_api配置文件是否写好第二检查数据库是否创建nova_api数据库。


: o; Y* l+ G6 _- ~
" R2 y. [0 P) h( o% c- V
0 y2 l0 I9 |. k/ R5 M1 h' g5 O