[Openstack-operators] Could not get IP to instance through neutron

pra devOPS siv.devops at gmail.com
Tue Jun 16 23:08:59 UTC 2015


All:

I have installed and configured neutron (using the  official docs, my
openstack version is icehouse and the OS is centOS7.


After creating the neutron network and started the instance the instance
goes to the ERROR state and says "no Valid host found"


/var/log/neutron/openvswitch-agent.log Shows below:

        Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf',
'ovs-ofctl', 'dump-flows', 'br-int', 'table=22']
Exit code: 1
Stdout: ''
Stderr: 'ovs-ofctl: br-int is not a bridge or a socket\n'
2015-06-16 15:03:11.458 14566 ERROR neutron.agent.linux.ovs_lib [-] Unable
to execute ['ovs-ofctl', 'dump-flows', 'br-int', 'table=22']. Exception:
Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf',
'ovs-ofctl', 'dump-flows', 'br-int', 'table=22']
Exit code: 1
Stdout: ''
Stderr: 'ovs-ofctl: br-int is not a bridge or a socket\n'
2015-06-16 15:21:00.204 14566 INFO neutron.agent.securitygroups_rpc [-]
Preparing filters for devices set([u'gw-cea73d4a-1c'])
2015-06-16 15:21:00.487 14566 WARNING
neutron.plugins.openvswitch.agent.ovs_neutron_agent [-] Device
gw-cea73d4a-1c not defined on plugin


The Nova Compute log shows below:


REQ: curl -i http://10.0.0.125:35357/v2.0/tokens -X POST -H "Content-Type:
application/json" -H "Accept: application/json" -H "User-Agent:
python-neutronclient" -d '{"auth": {"tenantName": "service",
"passwordCredentials": {"username": "neutron", "password": "REDACTED"}}}'
 http_log_req
/usr/lib/python2.7/site-packages/neutronclient/common/utils.py:173
2015-06-16 16:08:22.313 23468 DEBUG neutronclient.client [-]
RESP:{'status': '401', 'content-length': '114', 'vary': 'X-Auth-Token',
'date': 'Tue, 16 Jun 2015 23:08:22 GMT', 'content-type':
'application/json', 'www-authenticate': 'Keystone uri="
http://10.10.202.125:35357"'} {"error": {"message": "The request you have
made requires authentication.", "code": 401, "title": "Unauthorized"}}
 http_log_resp
/usr/lib/python2.7/site-packages/neutronclient/common/utils.py:179
2015-06-16 16:08:22.314 23468 ERROR nova.compute.manager [-] [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887] An error occurred while refreshing
the network cache.
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887] Traceback (most recent call last):
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]   File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4938, in
_heal_instance_info_cache
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]
self._get_instance_nw_info(context, instance, use_slave=True)
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]   File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1163, in
_get_instance_nw_info
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]     instance)
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]   File
"/usr/lib/python2.7/site-packages/nova/network/neutronv2/api.py", line 482,
in get_instance_nw_info
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]     port_ids)
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]   File
"/usr/lib/python2.7/site-packages/nova/network/neutronv2/api.py", line 496,
in _get_instance_nw_info
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]     port_ids)
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]   File
"/usr/lib/python2.7/site-packages/nova/network/neutronv2/api.py", line
1137, in _build_network_info_model
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]     data =
client.list_ports(**search_opts)
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]   File
"/usr/lib/python2.7/site-packages/nova/network/neutronv2/__init__.py", line
81, in wrapper
2015-06-16 16:08:22.314 23468 TRACE nova.compute.manager [instance:
9667a1d6-9883-429d-8b85-6f0ad0a8d887]     ret = obj(*args, **kwargs)



Below are my setting:


== Nova networks ==
+--------------------------------------+------------+------+
| ID                                   | Label      | Cidr |
+--------------------------------------+------------+------+
| 7d554063-8b7e-40a9-af02-738ca2b480a4 | net-ext    | -    |
| f14cecdf-95de-424a-871e-f278e61a008b | Int-Subnet | -    |
+--------------------------------------+------------+------+
== Nova instance flavors ==
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| ID | Name      | Memory_MB | Disk | Ephemeral | Swap | VCPUs |
RXTX_Factor | Is_Public |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| 1  | m1.tiny   | 512       | 1    | 0         |      | 1     | 1.0
  | True      |
| 2  | m1.small  | 2048      | 20   | 0         |      | 1     | 1.0
  | True      |
| 3  | m1.medium | 4096      | 40   | 0         |      | 2     | 1.0
  | True      |
| 4  | m1.large  | 8192      | 80   | 0         |      | 4     | 1.0
  | True      |
| 5  | m1.xlarge | 16384     | 160  | 0         |      | 8     | 1.0
  | True      |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
== Nova instances ==
+--------------------------------------+-------+--------+------------+-------------+----------+
| ID                                   | Name  | Status | Task State |
Power State | Networks |
+--------------------------------------+-------+--------+------------+-------------+----------+
| 9667a1d6-9883-429d-8b85-6f0ad0a8d887 | myins | ERROR  | -          |
NOSTATE     |          |
+--------------------------------------+-------+--------+------------+-------------+----------+
[root at camsos01 ~]# neutron net-list
+--------------------------------------+------------+-------------------------------------------------------+
| id                                   | name       | subnets
                                |
+--------------------------------------+------------+-------------------------------------------------------+
| 7d554063-8b7e-40a9-af02-738ca2b480a4 | net-ext    |
6e030036-dbb2-4122-90fe-ef2984557648 10.0.0.128/29    |
| f14cecdf-95de-424a-871e-f278e61a008b | Int-Subnet |
146387bd-e042-41f4-a134-5d6a93935b63 10.0.1.0/24      |
+--------------------------------------+------------+-------------------------------------------------------+

[root at test01 ~]# ovs-vsctl show
89744d4a-f9e5-4fe1-b35e-81af9aaa0bac
    Bridge br-ext
        Port br-ext
            Interface br-ext
                type: internal
        Port "vlan410"
            Interface "vlan410"
    Bridge br-int
        fail_mode: secure
        Port br-int
            Interface br-int
                type: internal
        Port "gw-cea73d4a-1c"
            tag: 4095
            Interface "gw-cea73d4a-1c"
                type: internal
    ovs_version: "2.1.3"

[root at test01 ~]#ifconfig

gw-cea73d4a-1c: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.0.133  netmask 255.255.255.252  broadcast 10.10.202.135
        inet6 fe80::f816:3eff:feb1:8c41  prefixlen 64  scopeid 0x20<link>
        ether fa:16:3e:b1:8c:41  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 29  bytes 4093 (3.9 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vlan410: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.0.125  netmask 255.255.255.0  broadcast 10.10.202.255
        inet6 fe80::82c1:6eff:fe24:9e6e  prefixlen 64  scopeid 0x20<link>
        ether 40:a1:6e:b4:8e:ze  txqueuelen 0  (Ethernet)
        RX packets 1007  bytes 133092 (129.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 927  bytes 291403 (284.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Can somebody suggest me whats wrong?

Thanks,
Dev
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