Comment 2 for bug 1660722

Reviewed: https://review.openstack.org/427310
Committed: https://git.openstack.org/cgit/openstack/puppet-tripleo/commit/?id=621ea892a299d2029348db2b56fea1338bd41c48
Submitter: Jenkins
Branch: master

commit 621ea892a299d2029348db2b56fea1338bd41c48
Author: Mike Bayer <email address hidden>
Date: Tue Jan 31 12:13:29 2017 -0500

    set innodb_file_per_table to ON for MySQL / Galera

    InnoDB uses a single file by default which can grow to be
    tens/hundreds of gigabytes, and is not shrinkable even
    if data is deleted from the database.

    Best practices are that innodb_file_per_table is set to ON
    which instead stores each database table in its own file, each of
    which is also shrinkable by the InnoDB engine.

    Closes-Bug: #1660722
    Change-Id: I59ee53f6462a2eeddad72b1d75c77a69322d5de4