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Unable to create net-create ext-net .. Please help me

Hi Experts,

After neutron configuration,, I am getting below error while executing command to create external network on my controller node. Please guide me to fix this issue..

@control ~]# neutron --debug net-create ext-net --shared --router:external=True
DEBUG: neutronclient.neutron.v2_0.network.CreateNetwork get_data(Namespace(admin_state=True, columns=[], formatter='table', name=u'ext-net', prefix='', request_format='json', shared=True, tenant_id=None, variables=[]))
DEBUG: neutronclient.client
REQ: curl -i http://control:35357/v2.0/tokens -X POST -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"auth": {"tenantName": "admin", "passwordCredentials": {"username": "admin", "password": "labs123"}}}'

DEBUG: neutronclient.client RESP:{'date': 'Wed, 08 Oct 2014 05:38:43 GMT', 'vary': 'X-Auth-Token', 'content-length': '143', 'status': '500', 'content-type': 'application/json'} {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

ERROR: neutronclient.shell {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 526, in run_subcommand
    return run_command(cmd, cmd_parser, sub_argv)
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 79, in run_command
    return cmd.run(known_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 34, in run
    return super(OpenStackCommand, self).run(parsed_args)
  File "/usr/lib/python2.6/site-packages/cliff/display.py", line 84, in run
    column_names, data = self.take_action(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 40, in take_action
    return self.get_data(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 410, in get_data
    neutron_client = self.get_client()
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 350, in get_client
    return self.app.client_manager.neutron
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 40, in __get__
    self._handle = self.factory(instance)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/client.py", line 36, in make_client
    instance.initialize()
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 94, in initialize
    httpclient.authenticate()
  File "/usr/lib/python2.6/site-packages/neutronclient/client.py", line 244, in authenticate
    raise exceptions.Unauthorized(message=resp_body)
Unauthorized: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
DEBUG: neutronclient.shell clean_up CreateNetwork
DEBUG: neutronclient.shell Got an error: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

Unable to create net-create ext-net .. Please help me

Hi Experts,

After neutron configuration,, I am getting below error while executing command to create external network on my controller node. Please guide me to fix this issue..

@control ~]# neutron --debug net-create ext-net --shared --router:external=True
DEBUG: neutronclient.neutron.v2_0.network.CreateNetwork get_data(Namespace(admin_state=True, columns=[], formatter='table', name=u'ext-net', prefix='', request_format='json', shared=True, tenant_id=None, variables=[]))
DEBUG: neutronclient.client
REQ: curl -i http://control:35357/v2.0/tokens -X POST -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"auth": {"tenantName": "admin", "passwordCredentials": {"username": "admin", "password": "labs123"}}}'

DEBUG: neutronclient.client RESP:{'date': 'Wed, 08 Oct 2014 05:38:43 GMT', 'vary': 'X-Auth-Token', 'content-length': '143', 'status': '500', 'content-type': 'application/json'} {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

ERROR: neutronclient.shell {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 526, in run_subcommand
    return run_command(cmd, cmd_parser, sub_argv)
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 79, in run_command
    return cmd.run(known_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 34, in run
    return super(OpenStackCommand, self).run(parsed_args)
  File "/usr/lib/python2.6/site-packages/cliff/display.py", line 84, in run
    column_names, data = self.take_action(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 40, in take_action
    return self.get_data(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 410, in get_data
    neutron_client = self.get_client()
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 350, in get_client
    return self.app.client_manager.neutron
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 40, in __get__
    self._handle = self.factory(instance)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/client.py", line 36, in make_client
    instance.initialize()
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 94, in initialize
    httpclient.authenticate()
  File "/usr/lib/python2.6/site-packages/neutronclient/client.py", line 244, in authenticate
    raise exceptions.Unauthorized(message=resp_body)
Unauthorized: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
DEBUG: neutronclient.shell clean_up CreateNetwork
DEBUG: neutronclient.shell Got an error: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

DB synch error

[root@control ~]# su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head" neutron
Traceback (most recent call last):
  File "/usr/bin/neutron-db-manage", line 10, in <module>
    sys.exit(main())
  File "/usr/lib/python2.6/site-packages/neutron/db/migration/cli.py", line 166, in main
    CONF()
  File "/usr/lib/python2.6/site-packages/oslo/config/cfg.py", line 1638, in __call__
    raise ConfigFilesNotFoundError(self._namespace.files_not_found)
oslo.config.cfg.ConfigFilesNotFoundError: Failed to read some config files: /etc/neutron/plugin.ini

MySQL,netron and neutron-server deamon not able to start.. Earlier mysql service was working fine.. I am getting below my sql error.

@control ~]# /etc/init.d/neutron-server status
neutron is stopped

[root@control ~]# /etc/init.d/neutron-server force-reload
Stopping neutron:                                          [FAILED]

[root@control ~]# mysql -u root -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)

I have confuigured as per the below document links. Please help me to fix this

http://docs.openstack.org/icehouse/install-guide/install/yum/content/neutron-ml2-controller-node.html

Unable to create net-create ext-net .. Please help me

Hi Experts,

After neutron configuration,, I am getting below error while executing command to create external network on my controller node. Please guide me to fix this issue..

@control ~]# neutron --debug net-create ext-net --shared --router:external=True
DEBUG: neutronclient.neutron.v2_0.network.CreateNetwork get_data(Namespace(admin_state=True, columns=[], formatter='table', name=u'ext-net', prefix='', request_format='json', shared=True, tenant_id=None, variables=[]))
DEBUG: neutronclient.client
REQ: curl -i http://control:35357/v2.0/tokens -X POST -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"auth": {"tenantName": "admin", "passwordCredentials": {"username": "admin", "password": "labs123"}}}'

DEBUG: neutronclient.client RESP:{'date': 'Wed, 08 Oct 2014 05:38:43 GMT', 'vary': 'X-Auth-Token', 'content-length': '143', 'status': '500', 'content-type': 'application/json'} {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

ERROR: neutronclient.shell {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 526, in run_subcommand
    return run_command(cmd, cmd_parser, sub_argv)
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 79, in run_command
    return cmd.run(known_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 34, in run
    return super(OpenStackCommand, self).run(parsed_args)
  File "/usr/lib/python2.6/site-packages/cliff/display.py", line 84, in run
    column_names, data = self.take_action(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 40, in take_action
    return self.get_data(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 410, in get_data
    neutron_client = self.get_client()
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 350, in get_client
    return self.app.client_manager.neutron
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 40, in __get__
    self._handle = self.factory(instance)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/client.py", line 36, in make_client
    instance.initialize()
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 94, in initialize
    httpclient.authenticate()
  File "/usr/lib/python2.6/site-packages/neutronclient/client.py", line 244, in authenticate
    raise exceptions.Unauthorized(message=resp_body)
Unauthorized: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
DEBUG: neutronclient.shell clean_up CreateNetwork
DEBUG: neutronclient.shell Got an error: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

DB synch error

[root@control ~]# su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head" neutron
Traceback (most recent call last):
  File "/usr/bin/neutron-db-manage", line 10, in <module>
    sys.exit(main())
  File "/usr/lib/python2.6/site-packages/neutron/db/migration/cli.py", line 166, in main
    CONF()
  File "/usr/lib/python2.6/site-packages/oslo/config/cfg.py", line 1638, in __call__
    raise ConfigFilesNotFoundError(self._namespace.files_not_found)
oslo.config.cfg.ConfigFilesNotFoundError: Failed to read some config files: /etc/neutron/plugin.ini

MySQL,netron and neutron-server deamon not able to start.. Earlier mysql service was working fine.. I am getting below my sql error.

@control ~]# /etc/init.d/neutron-server status
neutron is stopped

[root@control ~]# /etc/init.d/neutron-server force-reload
Stopping neutron:                                          [FAILED]

[root@control ~]# mysql -u root -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)

@control ~]# /etc/init.d/mysqld start
Another MySQL daemon already running with the same unix socket.
Starting mysqld:                                           [FAILED]

@control ~]# /etc/init.d/mysqld status
mysqld is stopped

I have confuigured as per the below document links. Please help me to fix this

http://docs.openstack.org/icehouse/install-guide/install/yum/content/neutron-ml2-controller-node.html

Unable to create net-create ext-net .. Please help me

Hi Experts,

After neutron configuration,, I am getting below error while executing command to create external network on my controller node. Please guide me to fix this issue..

@control ~]# neutron --debug net-create ext-net --shared --router:external=True
DEBUG: neutronclient.neutron.v2_0.network.CreateNetwork get_data(Namespace(admin_state=True, columns=[], formatter='table', name=u'ext-net', prefix='', request_format='json', shared=True, tenant_id=None, variables=[]))
DEBUG: neutronclient.client
REQ: curl -i http://control:35357/v2.0/tokens -X POST -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"auth": {"tenantName": "admin", "passwordCredentials": {"username": "admin", "password": "labs123"}}}'

DEBUG: neutronclient.client RESP:{'date': 'Wed, 08 Oct 2014 05:38:43 GMT', 'vary': 'X-Auth-Token', 'content-length': '143', 'status': '500', 'content-type': 'application/json'} {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

ERROR: neutronclient.shell {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 526, in run_subcommand
    return run_command(cmd, cmd_parser, sub_argv)
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 79, in run_command
    return cmd.run(known_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 34, in run
    return super(OpenStackCommand, self).run(parsed_args)
  File "/usr/lib/python2.6/site-packages/cliff/display.py", line 84, in run
    column_names, data = self.take_action(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 40, in take_action
    return self.get_data(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 410, in get_data
    neutron_client = self.get_client()
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 350, in get_client
    return self.app.client_manager.neutron
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 40, in __get__
    self._handle = self.factory(instance)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/client.py", line 36, in make_client
    instance.initialize()
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 94, in initialize
    httpclient.authenticate()
  File "/usr/lib/python2.6/site-packages/neutronclient/client.py", line 244, in authenticate
    raise exceptions.Unauthorized(message=resp_body)
Unauthorized: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
DEBUG: neutronclient.shell clean_up CreateNetwork
DEBUG: neutronclient.shell Got an error: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

I am still getting DB synch errorerror..

[root@control ~]# su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head" neutron
Traceback (most recent call last):
  File "/usr/bin/neutron-db-manage", line 10, in <module>
    sys.exit(main())
  File "/usr/lib/python2.6/site-packages/neutron/db/migration/cli.py", line 166, in main
    CONF()
  File "/usr/lib/python2.6/site-packages/oslo/config/cfg.py", line 1638, in __call__
    raise ConfigFilesNotFoundError(self._namespace.files_not_found)
oslo.config.cfg.ConfigFilesNotFoundError: Failed to read some config files: /etc/neutron/plugin.ini

MySQL,netron Neutron service not yet started on controller node. Please find the configuration detail and neutron-server deamon not able to start.. Earlier mysql service was working fine.. avise how can I am getting below my sql error.fix this issue..

@control ~]# /etc/init.d/neutron-server status
neutron is stopped

[root@control grep ^[^#] /etc/neutron/neutron.conf
[DEFAULT]
[DEFAULT]
auth_strategy = keystone
rpc_backend = neutron.openstack.common.rpc.impl_qpid
qpid_hostname = control
notify_nova_on_port_status_changes = True
notify_nova_on_port_data_changes = True
nova_url = http://control:8774/v2
nova_admin_username = nova
nova_admin_tenant_id = 720ddd2e5f2f4084ae810734cf00cf40
nova_admin_password = labs123
nova_admin_auth_url = http://control:35357/v2.0
core_plugin = ml2
service_plugins = router
verbose = True
allow_overlapping_ips = True
[quotas]
[agent]
[keystone_authtoken]
auth_uri = http://control:5000
auth_host = control
auth_protocol = http
auth_port = 35357
admin_tenant_name = service
admin_user = neutron
admin_password = labs123
[database]
connection = mysql://neutron:labs123@control/neutron
[service_providers]
service_provider=VPN:openswan:neutron.services.vpn.service_drivers.ipsec.IPsecVPNDriver:default

@control ~]# /etc/init.d/neutron-server force-reload
grep ^[^#] /etc/neutron/plugins/ml2/ml2_conf.ini
[ml2]
type_drivers = gre
tenant_network_types = gre
mechanism_drivers = openvswitch
[ml2_type_flat]
[ml2_type_vlan]
[ml2_type_gre]
tunnel_id_ranges = 1:1000
[ml2_type_vxlan]
[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
enable_security_group = True

@control ~]# service neutron-server restart
Stopping neutron:                                          [FAILED]

[root@control ~]# mysql -u root -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)

@control ~]# /etc/init.d/mysqld start
Another MySQL daemon already running with the same unix socket.
Starting mysqld:                                           [FAILED]

@control ~]# /etc/init.d/mysqld status
mysqld is stopped

I have confuigured as per the below document links. Please help me to fix this

http://docs.openstack.org/icehouse/install-guide/install/yum/content/neutron-ml2-controller-node.html

Unable to create net-create ext-net .. Please help meFailed to read some config files: /etc/neutron/plugin.ini

Hi Experts,

After neutron configuration,, I am getting below error while executing command to create external network on my controller node. Please guide me to fix this issue..

@control ~]# neutron --debug net-create ext-net --shared --router:external=True
DEBUG: neutronclient.neutron.v2_0.network.CreateNetwork get_data(Namespace(admin_state=True, columns=[], formatter='table', name=u'ext-net', prefix='', request_format='json', shared=True, tenant_id=None, variables=[]))
DEBUG: neutronclient.client
REQ: curl -i http://control:35357/v2.0/tokens -X POST -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"auth": {"tenantName": "admin", "passwordCredentials": {"username": "admin", "password": "labs123"}}}'

DEBUG: neutronclient.client RESP:{'date': 'Wed, 08 Oct 2014 05:38:43 GMT', 'vary': 'X-Auth-Token', 'content-length': '143', 'status': '500', 'content-type': 'application/json'} {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

ERROR: neutronclient.shell {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 526, in run_subcommand
    return run_command(cmd, cmd_parser, sub_argv)
  File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 79, in run_command
    return cmd.run(known_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 34, in run
    return super(OpenStackCommand, self).run(parsed_args)
  File "/usr/lib/python2.6/site-packages/cliff/display.py", line 84, in run
    column_names, data = self.take_action(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/common/command.py", line 40, in take_action
    return self.get_data(parsed_args)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 410, in get_data
    neutron_client = self.get_client()
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/v2_0/__init__.py", line 350, in get_client
    return self.app.client_manager.neutron
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 40, in __get__
    self._handle = self.factory(instance)
  File "/usr/lib/python2.6/site-packages/neutronclient/neutron/client.py", line 36, in make_client
    instance.initialize()
  File "/usr/lib/python2.6/site-packages/neutronclient/common/clientmanager.py", line 94, in initialize
    httpclient.authenticate()
  File "/usr/lib/python2.6/site-packages/neutronclient/client.py", line 244, in authenticate
    raise exceptions.Unauthorized(message=resp_body)
Unauthorized: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}
DEBUG: neutronclient.shell clean_up CreateNetwork
DEBUG: neutronclient.shell Got an error: {"error": {"message": "An unexpected error prevented the server from fulfilling your request.", "code": 500, "title": "Internal Server Error"}}

I am still getting DB synch error..

[root@control ~]# su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head" neutron
Traceback (most recent call last):
  File "/usr/bin/neutron-db-manage", line 10, in <module>
    sys.exit(main())
  File "/usr/lib/python2.6/site-packages/neutron/db/migration/cli.py", line 166, in main
    CONF()
  File "/usr/lib/python2.6/site-packages/oslo/config/cfg.py", line 1638, in __call__
    raise ConfigFilesNotFoundError(self._namespace.files_not_found)
oslo.config.cfg.ConfigFilesNotFoundError: Failed to read some config files: /etc/neutron/plugin.ini

Neutron service not yet started on controller node. Please find the configuration detail and avise how can I fix this issue..

@control ~]# grep ^[^#] /etc/neutron/neutron.conf
[DEFAULT]
[DEFAULT]
auth_strategy = keystone
rpc_backend = neutron.openstack.common.rpc.impl_qpid
qpid_hostname = control
notify_nova_on_port_status_changes = True
notify_nova_on_port_data_changes = True
nova_url = http://control:8774/v2
nova_admin_username = nova
nova_admin_tenant_id = 720ddd2e5f2f4084ae810734cf00cf40
nova_admin_password = labs123
nova_admin_auth_url = http://control:35357/v2.0
core_plugin = ml2
service_plugins = router
verbose = True
allow_overlapping_ips = True
[quotas]
[agent]
[keystone_authtoken]
auth_uri = http://control:5000
auth_host = control
auth_protocol = http
auth_port = 35357
admin_tenant_name = service
admin_user = neutron
admin_password = labs123
[database]
connection = mysql://neutron:labs123@control/neutron
[service_providers]
service_provider=VPN:openswan:neutron.services.vpn.service_drivers.ipsec.IPsecVPNDriver:default

@control ~]# grep ^[^#] /etc/neutron/plugins/ml2/ml2_conf.ini
[ml2]
type_drivers = gre
tenant_network_types = gre
mechanism_drivers = openvswitch
[ml2_type_flat]
[ml2_type_vlan]
[ml2_type_gre]
tunnel_id_ranges = 1:1000
[ml2_type_vxlan]
[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
enable_security_group = True

@control ~]# service neutron-server restart
Stopping neutron:                                          [FAILED]

I have confuigured as per the below document links. Please help me to fix this

http://docs.openstack.org/icehouse/install-guide/install/yum/content/neutron-ml2-controller-node.html