Comment 9 for bug 1789846

Reviewed: https://review.openstack.org/600151
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=1ba5e6964b5eadd660f2f333e774ce174c4e6f06
Submitter: Zuul
Branch: stable/pike

commit 1ba5e6964b5eadd660f2f333e774ce174c4e6f06
Author: Oleg Bondarev <email address hidden>
Date: Thu Aug 30 12:25:07 2018 +0400

    l2 pop: check for more than 1 first active port on a node

    With high concurrency more than 1 port may be activated on an
    OVS agent at the same time (like VM port + a DVR port),
    so the patch mitigates the condition by checking for 1 or 2
    first active ports.

    Given that the condition also contains "or self.agent_restarted(context)"
    which makes it True first 180 sec (by default) after agent restart,
    I believe the downside of changing 1 to 2 should be negligible.

    Please see bug for more details on the issue.

    Closes-Bug: #1789846
    Change-Id: Ieab0186cbe05185d47bbf5a31141563cf923f66f
    (cherry picked from commit b32db30874a7729c4e9209cfc18e106a7e9fc697)