Comment 2 for bug 1713860

Reviewed: https://review.openstack.org/498973
Committed: https://git.openstack.org/cgit/openstack/quark/commit/?id=500817ab95875b08360f6a4facbd452271797078
Submitter: Jenkins
Branch: master

commit 500817ab95875b08360f6a4facbd452271797078
Author: Kyle Haley <email address hidden>
Date: Thu Aug 3 11:30:32 2017 -0700

    Adding updates to quark-agent to fix race condition

    These updates to redis_base allow quark-agent to check for a potential
    race condition that can occur from the time quark-agent acknowledges a
    security group rule set needs to be updated and when it acknowledges
    that rule set has actually been applied. quark-agent will now store
    security group rules before and after it has executed scripts on the
    hypervisor. If the rule sets do not match, that means an update has
    occurred while the hypervisor scripts were executing. quark-agent will
    not ack those changes and allows the next cycle to pick them up.

    Change-Id: Ieae13f7b22b8e463cba2ccce82fb94699838926a
    Closes-Bug: 1713860