devstack failed when Q_AGENT=ovn

[Xubo Zhang]

I tried stacking many times using the ovn-local.conf.sample (Q_AGENT=ovn), but I got a lot of errors,
2020-03-26 23:17:04.905 | ERROR: networking-ovn 7.0.0.0rc2.dev85 requires Babel!=2.4.0,>=2.3.4, which is not installed.
2020-03-26 23:17:04.905 | ERROR: networking-ovn 7.0.0.0rc2.dev85 requires futurist>=1.2.0, which is not installed.
2020-03-26 23:17:04.905 | ERROR: networking-ovn 7.0.0.0rc2.dev85 requires netaddr>=0.7.18, which is not installed.
2020-03-26 23:17:04.905 | ERROR: networking-ovn 7.0.0.0rc2.dev85 requires neutron-lib>=1.28.0, which is not installed.
2020-03-26 23:17:04.905 | ERROR: networking-ovn 7.0.0.0rc2.dev85 requires octavia-lib>=1.3.1, which is not installed.
2020-03-26 23:17:04.905 | ERROR: networking-ovn 7.0.0.0rc2.dev85 requires oslo.config>=5.2.0, which is not installed.
2020-03-26 23:17:04.905 | ERROR: networking-ovn 7.0.0.0rc2.dev85 requires ovs>=2.8.0, which is not installed.
2020-03-26 23:17:04.905 | ERROR: networking-ovn 7.0.0.0rc2.dev85 requires ovsdbapp>=0.17.0, which is not installed.
2020-03-26 23:17:04.906 | ERROR: networking-ovn 7.0.0.0rc2.dev85 requires pyOpenSSL>=17.1.0, which is not installed.

in the end, it says “Neutron did not start”.

[Rodolfo Alonso (rodolfo-alonso-hernandez)]

Hello Xubo:

What deployment tool did you use? devstack, tripleo, kolla?
Can you share the deployment tool logs?
Do you have the Neutron server logs?

Regards.

[Xubo Zhang (xbzhang99)]

devstack

[Xubo Zhang (xbzhang99)]

Hi, here is the stack.sh log. I don't see neutron log

[Brian Haley (brian-haley)]

I'm curious why the log shows networking-ovn at all, no code should be being used from that repository. Are both your neutron and devstack repositories up-to-date?

[Xubo Zhang (xbzhang99)]

yes, git log shows both are up to 3/27/2020

[Brian Haley (brian-haley)]

I still think you have some out-of-date info in local.conf due to the networking-ovn strings showing up in the log. For example, this line:

enable_plugin networking-ovn https://git.openstack.org/openstack/networking-ovn

should be this:

enable_plugin neutron https://opendev.org/openstack/neutron

The best thing to do is to is to copy this file to your devstack system:

  devstack/ovn-local.conf.sample

I did that today and ./stack.sh completed successfully, and stack.sh.log had no lines with 'networking-ovn' in it.

[Xubo Zhang (xbzhang99)]

thanks!

i found the problem. I have a directory networking-ovn in my home dir (same level of neutron), when i removed it, it worked. strange.