Comment 1 for bug 1466126

Reviewed: https://review.openstack.org/195220
Committed: https://git.openstack.org/cgit/stackforge/os-ansible-deployment/commit/?id=36378c5547a4c39db98994db61af68ee433ff943
Submitter: Jenkins
Branch: kilo

commit 36378c5547a4c39db98994db61af68ee433ff943
Author: Steve Lewis <email address hidden>
Date: Tue Jun 23 18:22:02 2015 -0700

    Clear expired Django sessions regularly from DB

    A random minute in the 21st hour UTC, daily, was chosen arbitrarily.
    That it is run on a single arbitrary host from the set was done to
    prevent unnecessary work being done until Bug #1424705 provides us with
    a cleaner solution.

    Adjusted to run once per day just to be sure that the operation doesn't
    lock the table for a meaningful duration.

    Making this configurable or tunable does not seem
    to be necessary at this time.

    Change-Id: I87164926a4d6a65d3c9f733d625a2d4af91c2597
    Closes-Bug: #1466126
    (cherry picked from commit 4ab949672428fda396d1d6a28149252dabc5655d)