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Is linux bridge agent mandatory in Openstack Neutron while launching an instance on the private network

asked 2016-06-15 08:10:27 -0500

Techie gravatar image

while launching an instance, I get scheduling, spawning, scheduling and then error state in my nova-list. Following http://docs.openstack.org/liberty/install-guide-rdo/launch-instance-private.html (http://docs.openstack.org/liberty/ins...) guide.

neutron agent-list

id | agent_type | host | alive | admin_state_up | binary | +--------------------------------------+--------------------+-----------------------------+-------+----------------+---------------------------+ | 64024029-eeac-41f7-8afd-3abb621a90c6 | DHCP agent | controller | :-) | True | neutron-dhcp-agent | | 7625cb78-2f42-47c6-ab38-c5h817c49c62 | Metadata agent | controller | :-) | True | neutron-metadata-agent | | 9974f3e8-6175-43a1-9e2b-8010fef8ac6c | L3 agent | controller | :-) | True | neutron-l3-agent |

Nova –conductor

84513aaa320943d2b9bdb7f681545c00 - - -] Failed to compute_task_build_instances: No valid host was found. There are not enough hosts available. 2016-06-12 16:32:44.326 63599 WARNING nova.scheduler.utils [req-d1ffc29e-de77-4d10-a6d8-8011c76939f2 22ec63ad76594b32a982ab32c6c26816 94513aaa320943d2b9bdb7f681545c00 - - -] [instance: 78cc5364-8a8c-4180-8c00-7afa5340889e] Setting instance to ERROR state.

Nova scheduler is fine

Neutron log – Server log

Failed to bind port 69574684-50fd-4350-b914-e7634371c793 on host http://pun01cloud02.ad.infosys.com 2016-06-12 16:32:35.857 20261 ERROR neutron.plugins.ml2.managers [req-9ce97fc6-d8e3-4987-93ab-2cd9fc37682f 041240a0cd9a49629f88bc587ac7876a]

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answered 2016-06-16 01:12:59 -0500

pjb gravatar image

updated 2016-06-16 01:14:23 -0500

No!! It is optional. You can use openvswitch instead, or combination of both.

Look into this file :

/etc/neutron/plugins/ml2/ml2_conf.ini

....

mechanism_drivers =
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answered 2016-06-16 04:40:04 -0500

Sanjay_1987 gravatar image

Hi,

Actually, one of OpenvSwithch agent or LinmuxBridge agent is needed. But in your case as I can see you are using linux bridge agent and its not showing up in neutron agent-list. So yes, it is needed in your case. Check the logs for /var/log/neutron/ for linuxbridge agent logs and whats wrong there. Or post your logs here.

First your linuxbridge agent should be visible in neutron agent-list.

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Asked: 2016-06-15 08:10:27 -0500

Seen: 264 times

Last updated: Jun 16 '16