单独安装nova 不能同步数据库

大家好。单独一个节点安装Nova组件，nova-manage db sync不能同步初始化数据库，
大家有没有遇到这个的问题
nova配置如下：
[root@nova nova-2014.1]# nova-manage db sync
[root@nova nova-2014.1]# nova-manage db sync
You have new mail in /var/spool/mail/root
[root@nova nova-2014.1]# ^C
[root@nova nova-2014.1]# cd nova-2014.1^C
[root@nova nova-2014.1]# grep "^[a-zA-Z]" /etc/nova/nova.conf
rabbit_host=192.168.56.102
rabbit_port=5672
rabbit_use_ssl=false
rabbit_userid=openstack
rabbit_password=openstack
rpc_backend=rabbit
auth_strategy=keystone
debug=false
verbose=false
log_file=nova.log
log_dir=/var/log/nova
novncproxy_base_url=http://192.168.56.105:6080/vnc_auto.html
vncserver_listen=0.0.0.0
vncserver_proxyclient_address=192.168.56.105
vnc_enabled=true
vnc_keymap=en-us
connection = mysql://nova:nova@192.168.56.101/nova
auth_host=192.168.56.103
auth_port=35357
auth_protocol=http
auth_uri=http://192.168.56.103:5000
auth_version=v2.0
admin_user=admin
admin_password=admin
admin_tenant_name=admin

问题解决：
connection = mysql://nova:nova@192.168.56.101/nova
改为这种形式
connection=mysql://nova:nova@192.168.56.101/nova
=两边多了空格