Percona XtraDB Cluster 5.7 Documentation¶

Percona XtraDB Cluster is a database clustering solution for MySQL. It ensures high availability, prevents downtime and data loss, and provides linear scalability for a growing environment.

Features of Percona XtraDB Cluster include:

• Synchronous replication

  Data is written to all nodes simultaneously, or not written at all if it fails even on a single node.

• Multi-master replication

  Any node can trigger a data update.

• True parallel replication

  Multiple threads on slave performing replication on row level.

• Automatic node provisioning

  You simply add a node and it automatically syncs.

• Data consistency

  No more unsynchronized nodes.

• PXC Strict Mode

  Avoids the use of experimental and unsupported features.

• Configuration script for ProxySQL

  Percona provides a ProxySQL package with the proxysql-admin tool that automatically configures Percona XtraDB Cluster nodes.

• Automatic configuration of SSL encryption

  Percona XtraDB Cluster includes the pxc-encrypt-cluster-traffic variable that enables automatic configuration of SSL encrytion.

• Optimized Performance

  Percona XtraDB Cluster performance is optimized to scale with a growing production workload.

  For more information, see the following blog posts:

  • How We Made Percona XtraDB Cluster Scale
  • Performance improvements in Percona XtraDB Cluster 5.7.17-29.20

Percona XtraDB Cluster is fully compatible with MySQL Server Community Edition, Percona Server, and MariaDB in the following sense:

• Data compatibility: You can use data created by any MySQL variant.
• Application compatibility: There is no or minimal application changes required.