Comment 6 for bug 1445123

Reviewed: https://review.openstack.org/177107
Committed: https://git.openstack.org/cgit/openstack/designate/commit/?id=2900cd391efae38be1121e58e72f5519f4a95e90
Submitter: Jenkins
Branch: stable/kilo

commit 2900cd391efae38be1121e58e72f5519f4a95e90
Author: Kiall Mac Innes <email address hidden>
Date: Wed Apr 22 15:42:29 2015 +0100

    central.update_status should be transactional

    Central's update status method issues a large number of SQL
    queries for large zones with many recent updates, as a result
    it's checking out many connections from our connection pool one
    after another, contributing to bug 1445123. By wrapping the
    call in a transaction, a single connection will be checked out
    of the pool.

    Partial-Bug: 1445123
    Change-Id: Idfde7578e1a17a6a0585835fe614f787102563fa
    (cherry picked from commit ac79df1567fb040067ed59d948e8a39fb90af177)