diff -r 1cc50ab79b8c -r 4c1935f5ec9a components/openstack/keystone/files/keystone.conf
--- a/components/openstack/keystone/files/keystone.conf	Thu Sep 08 12:41:54 2016 -0700
+++ b/components/openstack/keystone/files/keystone.conf	Thu Sep 08 13:16:06 2016 -0600
@@ -558,6 +558,12 @@
 # (string value)
 #mysql_sql_mode = TRADITIONAL
 
+# This configures the MySQL storage engine. This allows for OpenStack to
+# support different storage engines such as InnoDB, NDB, etc. By Default,
+# this value will be set to InnoDB. For MySQL Cluster, set to NDBCLUSTER.
+# Example: mysql_storage_engine=(string value)
+#mysql_storage_engine = InnoDB
+
 # Timeout before idle SQL connections are reaped. (integer value)
 # Deprecated group/name - [DEFAULT]/sql_idle_timeout
 # Deprecated group/name - [DATABASE]/sql_idle_timeout