quantum-server 启动过程中卡住 且不报错

我使用如下命令启动quantum server
quantum-server  --config-file=/etc/quantum/quantum.conf  
--config-file=/etc/quantum/plugins/openvswitch/ovs_quantum_plugin.ini
但是该服务启动过程中莫名其妙卡住，查看quantum.log，
发现停留在：Using /root/keystone-signing as cache directory for signing certificate这一步
而不出现wsgi starting up on http://ip:9696，  请问可能是哪里出了问题
整个过程中没有报错
quantum.conf如下：
[DEFAULT]
verbose = True
debug = True                                                                                                                
bind_host = 10.10.102.10
bind_port = 9696
use_syslog = False
log_dir = /var/log/quantum
log_file = quantum.log
state_path = /var/lib/quantumcore_plugin = quantum.plugins.openvswitch.ovs_quantum_plugin.OVSQuantumPluginV2
api_paste_config = /etc/quantum/api-paste.ini
auth_strategy = keystone
base_mac = fa:16:3e:00:00:00
mac_generation_retries = 5
dhcp_lease_duration = 68400
allow_bulk = True
allow_overlapping_ips = False
rpc_backend = quantum.openstack.common.rpc.impl_qpid
control_exchange = quantumqpid_hostname = localhost
qpid_port = 5672notification_driver = quantum.openstack.common.notifier.rabbit_notifier
list_notifier_drivers = quantum.openstack.common.notifier.rabbit_notifier[QUTAS]
quota_items = network,subnet,port
default_quota = -1
quota_network = 10
quota_subnet = 10
quota_driver = quantum.quota.ConfDriver