Comment 7 for bug 1780752

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Albert Damen (albrt) wrote :

After installing this upgrade, my openstack neutron services didn't start anymore.
Neutron log shows:
2018-10-18 08:08:10.573 16703 CRITICAL neutron [-] Unhandled error: ImportError: No module named compat
...
2018-10-18 08:04:30.302 14895 ERROR neutron File "/usr/lib/python2.7/dist-packages/ovs/db/custom_index.py", line 12, in <module>
2018-10-18 08:04:30.302 14895 ERROR neutron from ovs.compat import sortedcontainers
2018-10-18 08:04:30.302 14895 ERROR neutron ImportError: No module named compat

Downgrading openvswitch-common, openvswitch-switch and python-openvswitch to version python-openvswitch solved the problem.

I found https://bugzilla.redhat.com/show_bug.cgi?id=1619712 which suggests the issue is due to a change in openvswitch 2.9.1.