Comment 7 for bug 1837380

Reviewed: https://review.opendev.org/673171
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=fa2863be864f75cd4a11584bcbeeb761a5380883
Submitter: Zuul
Branch: stable/queens

commit fa2863be864f75cd4a11584bcbeeb761a5380883
Author: Slawek Kaplonski <email address hidden>
Date: Mon Jul 22 13:29:28 2019 +0200

    Don't crash ovs agent during reconfigure of phys bridges

    In case when physical bridge was recreated on host, ovs agent
    is trying to reconfigure it.
    If there will be e.g. timeout while getting bridge's datapath_id,
    RuntimeError will be raised and that caused crash of whole agent.

    This patch changes that to not crash agent in such case but try to
    reconfigure everything in next rpc_loop iteration once again.

    Conflicts:
        neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py
        neutron/tests/unit/plugins/ml2/drivers/openvswitch/agent/test_ovs_neutron_agent.py

    Change-Id: Ic9b17a420068c0c76748e2c24d97be1ed7c460c7
    Closes-Bug: #1837380
    (cherry picked from commit b63809715a0b9b8ea0f354dfd6f1b3fd7a713352)