Some links for further reference:
- percona-toolkit: Percona Toolkit for MySQL is a collection of advanced command-line tools used by Percona MySQL Support staff to perform a variety of MySQL server and system tasks that are too difficult or complex to perform manually.
- openarkkit: The openark kit provides common utilities to administer, diagnose and audit MySQL databases.
- soundcloud/lhm: Online MySQL schema migrations
- freels/table_migrator: Zero-downtime table migrations in MySQL
- MySQL at Facebook: Facebook's strategy