About Percona XtraBackup

About Percona XtraBackup

Percona XtraBackup is the world’s only open-source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases. With Percona XtraBackup, you can achieve the following benefits:

  • Backups that complete quickly and reliably
  • Uninterrupted transaction processing during backups
  • Savings on disk space and network bandwidth
  • Automatic backup verification
  • Higher uptime due to faster restore time

Percona XtraBackup makes MySQL hot backups for all versions of Percona Server for MySQL, and MySQL. It performs streaming, compressed, and incremental MySQL backups.

Important

With the introduction of Percona XtraBackup 8.0, Percona XtraBackup 2.4 will continue to support MySQL and Percona Server 5.6 and 5.7 databases. Due to the new MySQL redo log and data dictionary formats the Percona XtraBackup 8.0.x versions will only be compatible with MySQL 8.0.x and the upcoming Percona Server for MySQL 8.0.x

Percona’s enterprise-grade commercial MySQL Support contracts include support for Percona XtraBackup. We recommend support for critical production deployments.

Supported storage engines

Percona XtraBackup works with MySQL and Percona Server for MySQL. It supports completely non-blocking backups of InnoDB, XtraDB, and MyRocks storage engines. In addition, it can back up the following storage engines by briefly pausing writes at the end of the backup: MyISAM, Merge, and Archive, including partitioned tables, triggers, and database options.

Important

The support of the MyRocks storage engine was added in version 8.0.6.

Percona XtraBackup 8.0 does not support the TokuDB storage engine.

See also

Percona TokuBackup
https://www.percona.com/doc/percona-server/LATEST/tokudb/toku_backup.html

What are the features of Percona XtraBackup?

Here is a short list of Percona XtraBackup features. See the documentation for more.

  • Create hot InnoDB backups without pausing your database
  • Make incremental backups of MySQL
  • Stream compressed MySQL backups to another server
  • Move tables between MySQL servers on-line
  • Create new MySQL replication replicas easily
  • Backup MySQL without adding load to the server

Footnotes

[1]InnoDB tables are still locked while copying non-InnoDB data.
[2]Fast incremental backups are supported for Percona Server for MySQL with XtraDB changed page tracking enabled.
[3]Percona XtraBackup supports encryption with any kinds of backups. MySQL Enterprise Backup only supports encryption for single-file backups.
[4]Percona XtraBackup performs throttling based on the number of IO operations per second. MySQL Enterprise Backup supports a configurable sleep time between operations.
[5]Percona XtraBackup skips secondary index pages and recreates them when a compact backup is prepared. MySQL Enterprise Backup skips unused pages and reinserts on the prepare stage.
[6]Percona XtraBackup can export individual tables even from a full backup, regardless of the InnoDB version. MySQL Enterprise Backup uses InnoDB 5.6 transportable tablespaces only when performing a partial backup.
[7]

Backup locks is a lightweight alternative to FLUSH TABLES WITH READ LOCK available in Percona Server for MySQL. Percona XtraBackup uses them automatically to copy non-InnoDB data to avoid blocking DML queries that modify InnoDB tables.

For more information see How Percona XtraBackup Works
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