# Percona XtraDB Cluster 8.0 Documentation

!!! note ""

    This documentation is for the latest release: Percona XtraDB Cluster {{release}} ([Release Notes](release-notes/{{release}}.md)).

[Percona XtraDB Cluster](https://www.percona.com/software/mysql-database/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

| Feature| Details|
| ------ | ------ | 
| Synchronous replication  | Data is written to all nodes simultaneously, or not written at all in case of a failure even on a single node  |
| Multi-source replication| Any node can trigger a data update. |
| True parallel replication| Multiple threads on replica 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 tech preview features and unsupported features|
| Configuration script for ProxySQL| Percona XtraDB Cluster includes the `proxysql-admin` tool that automatically configures Percona XtraDB Cluster nodes using ProxySQL. |
| Automatic configuration of SSL encryption| Percona XtraDB Cluster includes the `pxc-encrypt-cluster-traffic` variable that enables automatic configuration of SSL encryption |
| Optimized Performance| Percona XtraDB Cluster performance is optimized to scale with a growing production workload|

Percona XtraDB Cluster 8.0 is fully compatible with MySQL Server Community Edition 8.0 and Percona Server for MySQL 8.0. The cluster has the following compatibilities:

* Data - use the data created by any MySQL variant.

* Application - no changes or minimal application changes are required for an application to use the cluster.

!!! admonition "See also"

    Overview of changes in the most recent PXC release

     * [Important changes in Percona XtraDB Cluster 8.0](upgrade-guide.md#important-changes-in-percona-xtradb-cluster-80)

     * [MySQL Community Edition](https://www.mysql.com/products/community/)
     
     * [Percona Server for MySQL](https://www.percona.com/doc/percona-server/8.0/index.html)
    
     * [How We Made Percona XtraDB Cluster Scale](https://www.percona.com/blog/2017/04/19/how-we-made-percona-xtradb-cluster-scale)
   
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## :material-progress-download: Quickstart guide { .title }

Get started quickly with our Quickstart guide.

[Quickstart guide](quickstart-overview.md){ .md-button }

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### :material-progress-download: Installation guides { .title }

Find the best installation solution with our step-by-step installation instructions.

[Installation instructions](install-index.md){ .md-button }

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### :material-backup-restore: High availability { .title }

Learn about how Percona XtraDB Cluster delivers high availability.

[High availability](high-availability.md){ .md-button }

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## :fontawesome-solid-gears: State Snapshot Transfer (SST) Method using Clone plugin { .title }

Learn about a modern and efficient method that leverages MySQL’s native cloning capabilities to transfer data from a donor node to a Joiner node.

[SST](clone-sst.md){ .md-button}

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