Hello. There are several bugs and patches on review related to the MySQL with Galera and HAproxy cluster-check script configuration. Please don't hesitate to discuss them in this mail thread and in the review. * MySQL O_DIRECT mode [0] - merged. Do we need some additional performance test cases for this change? This is also about to improve the memory allocation for the host OS as O_DIRECT eliminates double buffering. * Galera clustercheck script should use available_when_donor=1 [1]. This one should improve the UX for the case when all galera nodes went down and cluster is being reassembled completely. * Mysql deadlock duiring deployment [2]. While the fix for the puppet-mysql provider issue [3] could be also nice to have, the related fix is to increase wsrep_retry_autocommit to make deadlocks be tolerated in a slightly better way from the server side as well. * READ-COMMITED transactions isolation for MySQL [4]. There is an original mail thread [5] explaining the related Oslo.db issue with transactions semantics for different types of DB backend. [0] https://bugs.launchpad.net/fuel/+bug/1378063 [1] https://bugs.launchpad.net/fuel/+bug/1437816 [2] https://bugs.launchpad.net/fuel/+bug/1431702 [3] https://tickets.puppetlabs.com/browse/MODULES-1852 [4] https://bugs.launchpad.net/fuel/+bug/1438107 [5] http://lists.openstack.org/pipermail/openstack-dev/2015-February/056245.html -- Best regards, Bogdan Dobrelya, Skype #bogdando_at_yahoo.com Irc #bogdando