OpenStack : Neutron : Neutron problem and solution

Problem :

in /var/log/neutron/openvswitch-agent.log


2014-08-23 14:46:58.105 4456 TRACE neutron.plugins.openvswitch.agent.ovs_neutron_agent Timeout: Timeout while waiting on RPC response - topic: "q-plugin", RPC method: "security_group_rules_for_devices" info: "<unknown>"



[openstack@novo ~(keystone_admin)]$ neutron port-list
Connection to neutron failed: Maximum attempts reached





Solution :


[root@novo sbin]# service neutron-server restart
Stopping neutron:                                          [FAILED]
Starting neutron:                                          [  OK  ]

After that :

in /var/log/neutron/openvswitch-agent.log

2014-08-23 14:47:00.384 4456 INFO neutron.plugins.openvswitch.agent.ovs_neutron_agent [req-45eca3db-5fa3-45da-b439-526819e7a010 None] Configuration for device 24110dfe-84f9-4dca-beb0-e17cf50b291f completed.

 [openstack@novo ~(keystone_admin)]$ neutron port-list
+--------------------------------------+------+-------------------+-------------------------------------------------------------------------------------+
| id                                   | name | mac_address       | fixed_ips                                                                           |
+--------------------------------------+------+-------------------+-------------------------------------------------------------------------------------+
| 24110dfe-84f9-4dca-beb0-e17cf50b291f |      | fa:16:3e:b4:df:f0 | {"subnet_id": "4de1afb9-ed1f-4c32-9bbb-20eec6073963", "ip_address": "10.0.0.2"}     |
| 36b6c681-4032-495e-a799-ab05a4d35249 |      | fa:16:3e:29:ed:8c | {"subnet_id": "4de1afb9-ed1f-4c32-9bbb-20eec6073963", "ip_address": "10.0.0.3"}     |
| 426f579f-5506-4229-99ff-6840e4b38dea |      | fa:16:3e:a4:b2:07 | {"subnet_id": "4de1afb9-ed1f-4c32-9bbb-20eec6073963", "ip_address": "10.0.0.8"}     |
| 5e313f5f-0603-41d2-b652-ff1f1c84dece |      | fa:16:3e:85:28:cd | {"subnet_id": "96a64200-a1fb-40e8-b888-c16bbe70609a", "ip_address": "172.24.4.235"} |
| b972f13b-5f89-4e93-a46a-b797aca9646e |      | fa:16:3e:b0:e4:eb | {"subnet_id": "96a64200-a1fb-40e8-b888-c16bbe70609a", "ip_address": "172.24.4.236"} |
| c322386e-cea0-46a4-a520-8c3123f9ea2f |      | fa:16:3e:01:ff:59 | {"subnet_id": "96a64200-a1fb-40e8-b888-c16bbe70609a", "ip_address": "172.24.4.231"} |
| cad3ee33-844e-4a1a-be7c-95751eb71600 |      | fa:16:3e:56:9f:44 | {"subnet_id": "4de1afb9-ed1f-4c32-9bbb-20eec6073963", "ip_address": "10.0.0.1"}     |
| d7b68106-4785-419e-89c8-c553ddfc92f3 |      | fa:16:3e:03:3f:5c | {"subnet_id": "4de1afb9-ed1f-4c32-9bbb-20eec6073963", "ip_address": "10.0.0.9"}     |
| f7ae4cd8-393d-47e1-a875-20b30adb2f4f |      | fa:16:3e:48:d9:c0 | {"subnet_id": "96a64200-a1fb-40e8-b888-c16bbe70609a", "ip_address": "172.24.4.232"} |
+--------------------------------------+------+-------------------+-------------------------------------------------------------------------------------+