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ovs-system,br-ext, br-int in down state

asked 2020-06-15 20:06:38 -0500

ritzttk gravatar image

Hi , I am installing openstack base bundle charm on Juju + Maas. Deploy task is success. Unit and application show active all. https://paste.ubuntu.com/p/j5JM6d2WrZ/ But ports ovs-system,br-ext, br-int in down mode. This is ip a command on compute node : https://paste.ubuntu.com/p/j6xkDkJxrT/

I can create router, external network, assign interface, but the external gateway can not ping to router . And when I assign floating ip for instance, it don't show the internal port to assign floating ip

Please instruct me how can I troubleshoot this . I tried redeploy many times but it still have the same error.

Thanks for your help

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I don't know anything about Juju deployments, but IMO br-ex should have an IP address and not be down. I'd look at the ML2 configuration, and layer 2 agent(s) config (is this OVN?). openstack network agent list and the Neutron logs might also provide some clues.

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-15 20:16:57 -0500 )edit

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answered 2020-06-16 10:01:17 -0500

ritzttk gravatar image

Hi, thanks for helping me. This is the network agent list : https://paste.ubuntu.com/p/CHznwmKJ3s/ . It looks good. The neutron log show some errors

ERROR ovsdbapp.backend.ovs_idl.idlutils [-] Unable to open stream to tcp:127.0.0.1:6642 to retrieve schema: Connection refused

The port 6642 is openning on another machine which is putting ovnnb_db, ovnsb_db, northd. I am checking nova-compute log and see some errors:

os_vif [-] Loaded VIF plugins: linux_bridge, noop, ovs CRITICAL nova [req-0425f43d-729d-4b39-8dca-990520fb02b4 - - - - -] Unhandled error: keystoneauth1.exceptions.auth_plugins.MissingAuthPlugin: An auth plugin is required to determine endpoint URL

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It looks like authentication is not correctly configured on that compute node. Config example: https://docs.openstack.org/nova/lates....

I can't interpret the error from the Neutron log (which Neutron log is that, by the way?).

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-16 16:45:10 -0500 )edit

connection refused means nothing listens at port 6642. Since I know very little about OVN, I don't know what is supposed to listen.

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-16 16:49:50 -0500 )edit

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Asked: 2020-06-15 20:06:38 -0500

Seen: 32 times

Last updated: Jun 15