Comment 2 for bug 1486134

Reviewed: https://review.openstack.org/214282
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=a8bddee4f43c2772e4ca96acdee9b95feec733a9
Submitter: Jenkins
Branch: master

commit a8bddee4f43c2772e4ca96acdee9b95feec733a9
Author: Salvatore Orlando <email address hidden>
Date: Tue Aug 18 10:01:50 2015 -0700

    Stop using quota reservations on base controller

    The reservation engine is subject to failures due to concurrency;
    the switch to pymysql is likely to also have a part in observed
    failures. While no gate failures have been observed so far, this
    is a time bomb waiting to explode and must be addressed.

    For this reason this patch acts conservatively by ensuring the
    API controllers do not use anymore reservation. The code for
    reservation management is preserved, and will wired again on the
    controller when these issues are sorted.

    The devref for neutron quotas is updated accordingly as a part
    of this patch.

    Related bug: #1486134

    Change-Id: I2a95fef0fdf64ef8781bef99be0fdc743346c17a