Comment 7 for bug 1263908

Reviewed: https://review.openstack.org/68684
Committed: https://git.openstack.org/cgit/openstack/oslo-incubator/commit/?id=ce69e7f8f65b175343d7035b3f084c91fd29fbf5
Submitter: Jenkins
Branch: master

commit ce69e7f8f65b175343d7035b3f084c91fd29fbf5
Author: Roman Podoliaka <email address hidden>
Date: Thu Jan 23 17:45:50 2014 +0200

    Don't store engine instances in oslo.db

    oslo.db is meant to be a collection of helper utilities for
    SQLAlchemy. In order to behave like a 'good' library, we must
    stop using global state.

    This patch ensures we don't store any engine instances globally in
    oslo.db. It's up to end applications to decide how to cope with
    engines, not oslo.db.

    Partial-Bug: #1263908

    Co-authored-by: Victor Sergeyev <email address hidden>

    Change-Id: I330467ec1317e1a13ff9f0237e2d8900d718e379