People using OpenStack Trove instances can hit a common issue in the MySQL world: how to perform schema change operations while minimizing the impact on the database server? Lets explore the options that can allow online schema changes. Summary With MySQL 5.5, pt-online-schema-change from Percona Toolkit is your best option for large tables while regular [&]

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http://www.percona.com/blog/2014/11/24/schema-changes-in-mysql-for-openstack-trove-users/