Percona XtraDB Cluster (PXC) is an active/active high availability and high scalability open source solution for MySQL clustering. It integrates Percona Server and Percona XtraBackup with the Codership Galera library of MySQL high availability solutions in a single package that enables you to create a cost-effective MySQL high availability cluster.
This white paper describes how to perform schema upgrades using Percona XtraDB Cluster.
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